After the update to 13.7.0 POS not longer shown properly

Thank you for your fast reply.
Unfortunately, that didn’t help.

$ sudo bench update --requirements --no-backup

remote: Total 0 (delta 0), reused 0 (delta 0), pack-reused 0
Von https://github.com/frappe/frappe
* branch                  version-13 -> FETCH_HEAD
Setting up requirements...
Installing applications...
$ /disk/service/web/home/erp/frappe-bench/env/bin/python -m pip install -q -U pip

Installing frappe
$ /disk/service/web/home/erp/frappe-bench/env/bin/python -m pip install -q -U -e /disk/service/web/home/erp/frappe-bench/apps/frappe  
$ yarn install
yarn install v1.22.10
warning ../../package.json: No license field
[1/4] Resolving packages...
[2/4] Fetching packages...
[3/4] Linking dependencies...
warning " > bootstrap@4.5.0" has unmet peer dependency "jquery@1.9.1 - 3".
warning " > bootstrap@4.5.0" has unmet peer dependency "popper.js@^1.16.0".
warning Workspaces can only be enabled in private projects.
[4/4] Building fresh packages...
[1/4] ⡀ node-sass
[-/4] ⡀ waiting...
[-/4] ⡀ waiting...
error /disk/service/web/home/erp/frappe-bench/apps/frappe/node_modules/node-sass: Command failed.
Exit code: 1
Command: node scripts/build.js
Arguments:
Directory: /disk/service/web/home/erp/frappe-bench/apps/frappe/node_modules/node-sass
Output:
Building: /usr/bin/node /disk/service/web/home/erp/frappe-bench/apps/frappe/node_modules/node-gyp/bin/node-gyp.js rebuild --verbose --libsass_ext= --libsass_cflags= --li
bsass_ldflags= --libsass_library=
gyp info it worked if it ends with ok
gyp verb cli [
gyp verb cli   '/usr/bin/node',
gyp verb cli   '/disk/service/web/home/erp/frappe-bench/apps/frappe/node_modules/node-gyp/bin/node-gyp.js',
gyp verb cli   'rebuild',
gyp verb cli   '--verbose',
gyp verb cli   '--libsass_ext=',
gyp verb cli   '--libsass_cflags=',
gyp verb cli   '--libsass_ldflags=',
gyp verb cli   '--libsass_library='
gyp verb cli ]
gyp info using node-gyp@3.8.0
gyp info using node@16.5.0 | linux | x64
gyp verb command rebuild []
gyp verb command clean []
gyp verb clean removing "build" directory
gyp verb command configure []
gyp verb check python checking for Python executable "python2" in the PATH
gyp verb `which` failed Error: not found: python2
gyp verb `which` failed     at getNotFoundError (/disk/service/web/home/erp/frappe-bench/apps/frappe/node_modules/which/which.js:13:12)
gyp verb `which` failed     at F (/disk/service/web/home/erp/frappe-bench/apps/frappe/node_modules/which/which.js:68:19)
gyp verb `which` failed     at E (/disk/service/web/home/erp/frappe-bench/apps/frappe/node_modules/which/which.js:80:29)
gyp verb `which` failed     at /disk/service/web/home/erp/frappe-bench/apps/frappe/node_modules/which/which.js:89:16
gyp verb `which` failed     at /disk/service/web/home/erp/frappe-bench/apps/frappe/node_modules/isexe/index.js:42:5
gyp verb `which` failed     at /disk/service/web/home/erp/frappe-bench/apps/frappe/node_modules/isexe/mode.js:8:5
gyp verb `which` failed     at FSReqCallback.oncomplete (node:fs:195:21)
gyp verb `which` failed  python2 Error: not found: python2
gyp verb `which` failed     at getNotFoundError (/disk/service/web/home/erp/frappe-bench/apps/frappe/node_modules/which/which.js:13:12)
gyp verb `which` failed     at F (/disk/service/web/home/erp/frappe-bench/apps/frappe/node_modules/which/which.js:68:19)
gyp verb `which` failed     at E (/disk/service/web/home/erp/frappe-bench/apps/frappe/node_modules/which/which.js:80:29)
gyp verb `which` failed     at /disk/service/web/home/erp/frappe-bench/apps/frappe/node_modules/which/which.js:89:16
gyp verb `which` failed     at /disk/service/web/home/erp/frappe-bench/apps/frappe/node_modules/isexe/index.js:42:5
gyp verb `which` failed     at /disk/service/web/home/erp/frappe-bench/apps/frappe/node_modules/isexe/mode.js:8:5
gyp verb `which` failed     at FSReqCallback.oncomplete (node:fs:195:21) {
gyp verb `which` failed   code: 'ENOENT'
gyp verb `which` failed }
gyp verb check python checking for Python executable "python" in the PATH
gyp verb `which` succeeded python /disk/service/web/home/erp/bin/python
gyp ERR! configure error
gyp ERR! stack Error: Command failed: /disk/service/web/home/erp/bin/python -c import sys; print "%s.%s.%s" % sys.version_info[:3];
gyp ERR! stack   File "<string>", line 1
gyp ERR! stack     import sys; print "%s.%s.%s" % sys.version_info[:3];
gyp ERR! stack                       ^
gyp ERR! stack SyntaxError: invalid syntax
gyp ERR! stack
gyp ERR! stack     at ChildProcess.exithandler (node:child_process:397:12)
gyp ERR! stack     at ChildProcess.emit (node:events:394:28)
gyp ERR! stack     at maybeClose (node:internal/child_process:1067:16)
gyp ERR! stack     at Process.ChildProcess._handle.onexit (node:internal/child_process:301:5)
gyp ERR! System Linux 5.12.15-arch1-1
gyp ERR! command "/usr/bin/node" "/disk/service/web/home/erp/frappe-bench/apps/frappe/node_modules/node-gyp/bin/node-gyp.js" "rebuild" "--verbose" "--libsass_ext=" "--li
bsass_cflags=" "--libsass_ldflags=" "--libsass_library="
gyp ERR! cwd /disk/service/web/home/erp/frappe-bench/apps/frappe/node_modules/node-sass
gyp ERR! node -v v16.5.0
gyp ERR! node-gyp -v v3.8.0

Installing erpnext
$ /disk/service/web/home/erp/frappe-bench/env/bin/python -m pip install -q -U -e /disk/service/web/home/erp/frappe-bench/apps/erpnext  
$ yarn install
yarn install v1.22.10
warning ../../package.json: No license field
[1/4] Resolving packages...
success Already up-to-date.
$ yarn run snyk-protect
yarn run v1.22.10
warning ../../package.json: No license field
$ snyk protect
Successfully applied Snyk patches

Done in 5.28s.
Done in 6.17s.

Installing posawesome
$ /disk/service/web/home/erp/frappe-bench/env/bin/python -m pip install -q -U -e /disk/service/web/home/erp/frappe-bench/apps/posawesome  
$ yarn install
yarn install v1.22.10
warning ../../package.json: No license field
[1/4] Resolving packages...
success Already up-to-date.
Done in 0.17s.
Updating node packages...

Installing node dependencies for erpnext
$ yarn install
yarn install v1.22.10
warning ../../package.json: No license field
[1/4] Resolving packages...
success Already up-to-date.
$ yarn run snyk-protect
yarn run v1.22.10
warning ../../package.json: No license field
$ snyk protect
Successfully applied Snyk patches

Done in 4.23s.
Done in 5.09s.

Installing node dependencies for POS-Awesome
$ yarn install
yarn install v1.22.10
warning ../../package.json: No license field
[1/4] Resolving packages...
success Already up-to-date.
Done in 0.13s.

Installing node dependencies for frappe
$ yarn install
yarn install v1.22.10
warning ../../package.json: No license field
[1/4] Resolving packages...
[2/4] Fetching packages...
[3/4] Linking dependencies...
warning " > bootstrap@4.5.0" has unmet peer dependency "jquery@1.9.1 - 3".
warning " > bootstrap@4.5.0" has unmet peer dependency "popper.js@^1.16.0".
warning Workspaces can only be enabled in private projects.
[4/4] Building fresh packages...
[1/4] ⠂ node-sass
[-/4] ⠂ waiting...
[-/4] ⠄ waiting...
error /disk/service/web/home/erp/frappe-bench/apps/frappe/node_modules/node-sass: Command failed.
Exit code: 1
Command: node scripts/build.js
Arguments:
Directory: /disk/service/web/home/erp/frappe-bench/apps/frappe/node_modules/node-sass
Output:
Building: /usr/bin/node /disk/service/web/home/erp/frappe-bench/apps/frappe/node_modules/node-gyp/bin/node-gyp.js rebuild --verbose --libsass_ext= --libsass_cflags= --li
bsass_ldflags= --libsass_library=
gyp info it worked if it ends with ok
gyp verb cli [
gyp verb cli   '/usr/bin/node',
gyp verb cli   '/disk/service/web/home/erp/frappe-bench/apps/frappe/node_modules/node-gyp/bin/node-gyp.js',
gyp verb cli   'rebuild',
gyp verb cli   '--verbose',
gyp verb cli   '--libsass_ext=',
gyp verb cli   '--libsass_cflags=',
gyp verb cli   '--libsass_ldflags=',
gyp verb cli   '--libsass_library='
gyp verb cli ]
gyp info using node-gyp@3.8.0
gyp info using node@16.5.0 | linux | x64
gyp verb command rebuild []
gyp verb command clean []
gyp verb clean removing "build" directory
gyp verb command configure []
gyp verb check python checking for Python executable "python2" in the PATH
gyp verb `which` failed Error: not found: python2
gyp verb `which` failed     at getNotFoundError (/disk/service/web/home/erp/frappe-bench/apps/frappe/node_modules/which/which.js:13:12)
gyp verb `which` failed     at F (/disk/service/web/home/erp/frappe-bench/apps/frappe/node_modules/which/which.js:68:19)
gyp verb `which` failed     at E (/disk/service/web/home/erp/frappe-bench/apps/frappe/node_modules/which/which.js:80:29)
gyp verb `which` failed     at /disk/service/web/home/erp/frappe-bench/apps/frappe/node_modules/which/which.js:89:16
gyp verb `which` failed     at /disk/service/web/home/erp/frappe-bench/apps/frappe/node_modules/isexe/index.js:42:5
gyp verb `which` failed     at /disk/service/web/home/erp/frappe-bench/apps/frappe/node_modules/isexe/mode.js:8:5
gyp verb `which` failed     at FSReqCallback.oncomplete (node:fs:195:21)
gyp verb `which` failed  python2 Error: not found: python2
gyp verb `which` failed     at getNotFoundError (/disk/service/web/home/erp/frappe-bench/apps/frappe/node_modules/which/which.js:13:12)
gyp verb `which` failed     at F (/disk/service/web/home/erp/frappe-bench/apps/frappe/node_modules/which/which.js:68:19)
gyp verb `which` failed     at E (/disk/service/web/home/erp/frappe-bench/apps/frappe/node_modules/which/which.js:80:29)
gyp verb `which` failed     at /disk/service/web/home/erp/frappe-bench/apps/frappe/node_modules/which/which.js:89:16
gyp verb `which` failed     at /disk/service/web/home/erp/frappe-bench/apps/frappe/node_modules/isexe/index.js:42:5
gyp verb `which` failed     at /disk/service/web/home/erp/frappe-bench/apps/frappe/node_modules/isexe/mode.js:8:5
gyp verb `which` failed     at FSReqCallback.oncomplete (node:fs:195:21) {
gyp verb `which` failed   code: 'ENOENT'
gyp verb `which` failed }
gyp verb check python checking for Python executable "python" in the PATH
gyp verb `which` succeeded python /disk/service/web/home/erp/bin/python
gyp ERR! configure error
gyp ERR! stack Error: Command failed: /disk/service/web/home/erp/bin/python -c import sys; print "%s.%s.%s" % sys.version_info[:3];
gyp ERR! stack   File "<string>", line 1
gyp ERR! stack     import sys; print "%s.%s.%s" % sys.version_info[:3];
gyp ERR! stack                       ^
gyp ERR! stack SyntaxError: invalid syntax
gyp ERR! stack
gyp ERR! stack     at ChildProcess.exithandler (node:child_process:397:12)
gyp ERR! stack     at ChildProcess.emit (node:events:394:28)
gyp ERR! stack     at maybeClose (node:internal/child_process:1067:16)
gyp ERR! stack     at Process.ChildProcess._handle.onexit (node:internal/child_process:301:5)
gyp ERR! System Linux 5.12.15-arch1-1
gyp ERR! command "/usr/bin/node" "/disk/service/web/home/erp/frappe-bench/apps/frappe/node_modules/node-gyp/bin/node-gyp.js" "rebuild" "--verbose" "--libsass_ext=" "--li
bsass_cflags=" "--libsass_ldflags=" "--libsass_library="
gyp ERR! cwd /disk/service/web/home/erp/frappe-bench/apps/frappe/node_modules/node-sass
gyp ERR! node -v v16.5.0
gyp ERR! node-gyp -v v3.8.0

Installing node dependencies for posawesome
$ yarn install
yarn install v1.22.10
warning ../../package.json: No license field
[1/4] Resolving packages...
success Already up-to-date.
Done in 0.13s.
$ sudo systemctl stop -- $(systemctl show -p Requires frappe-bench.target | cut -d= -f2)
$ sudo systemctl start -- $(systemctl show -p Requires frappe-bench.target | cut -d= -f2)
Bench: Deployment tool for Frappe and Frappe Applications (https://frappe.io/bench).
Open source depends on your contributions, so do give back by submitting bug reports, patches and fixes and be a part of the community :)
$ sudo bench switch-to-branch version-13 frappe erpnext --upgrade
$ sudo bench update --patch --no-backup
    remote: Total 0 (delta 0), reused 0 (delta 0), pack-reused 0
    Von https://github.com/frappe/frappe
    * branch                  version-13 -> FETCH_HEAD
    Patching sites...
    Migrating riwollis-box.tcp4.me
    Updating DocTypes for frappe        : [========================================] 100%
    Updating DocTypes for erpnext       : [========================================] 100%
    Updating DocTypes for posawesome    : [========================================] 100%
    Updating Dashboard for frappe
    Updating Dashboard for erpnext
    Updating Dashboard for posawesome
    Updating customizations for Address
    Updating customizations for Contact
    Building search index for riwollis-box.tcp4.me
    Retrieving Routes                   : [========================================] 100%
    Building Index                      : [========================================] 100%Migrating riwollis-shop.tcp4.me
    Updating DocTypes for frappe        : [========================================] 100%
    Updating DocTypes for erpnext       : [========================================] 100%
    Updating Dashboard for frappe
    Updating Dashboard for erpnext
    Updating customizations for Address
    Updating customizations for Contact
    Building search index for riwollis-shop.tcp4.me
    Retrieving Routes                   : [========================================] 100%
    Building Index                      : [========================================] 100%$ sudo systemctl stop -- $(systemctl show -p Requires frappe-bench.target | cut -d=
    -f2) 
    $ sudo systemctl start -- $(systemctl show -p Requires frappe-bench.target | cut -d= -f2)

Bench: Deployment tool for Frappe and Frappe Applications (https://frappe.io/bench).
Open source depends on your contributions, so do give back by submitting bug reports, patches and fixes and be a part of the community :)

$ sudo bench update --build --no-backup
    remote: Total 0 (delta 0), reused 0 (delta 0), pack-reused 0
    Von https://github.com/frappe/frappe
    * branch                  version-13 -> FETCH_HEAD
    Building assets...
    $ bench build
    Retrieving assets...

✔ Downloaded Frappe assets from https://github.com/frappe/frappe/releases/download/v13.7.0/assets.tar.gz

Extracting assets...                                                                                                                                                      
                                                                                                                                                                         
✔ Restored js/control.min.js.map
✔ Restored js/web_form.min.js.map
✔ Restored js/moment-bundle.min.js
✔ Restored js/control.min.js
✔ Restored js/desk.min.js
✔ Restored js/desk.min.js.map
✔ Restored js/checkout.min.js
✔ Restored js/bootstrap-4-web.min.js.map
✔ Restored js/data_import_tools.min.js.map
✔ Restored js/chat.js.map
✔ Restored js/list.min.js
✔ Restored js/list.min.js.map
✔ Restored js/bootstrap-4-web.min.js
✔ Restored js/data_import_tools.min.js
✔ Restored js/barcode_scanner.min.js
✔ Restored js/dialog.min.js.map
✔ Restored js/chat.js
✔ Restored js/barcode_scanner.min.js.map
✔ Restored js/report.min.js.map
✔ Restored js/frappe-recorder.min.js.map
✔ Restored js/form.min.js
✔ Restored js/dialog.min.js
✔ Restored js/web_form.min.js
✔ Restored js/frappe-web.min.js
✔ Restored js/frappe-recorder.min.js
✔ Restored js/libs.min.js
✔ Restored js/report.min.js
✔ Restored js/form.min.js.map
✔ Restored js/checkout.min.js.map
✔ Restored js/user_profile_controller.min.js.map
✔ Restored js/frappe-web.min.js.map
✔ Restored js/user_profile_controller.min.js
✔ Restored css/rollup.manifest.css
✔ Restored css/email.css
✔ Restored css/report.min.css
✔ Restored css/frappe-web-b4.css
✔ Restored css/desk.min.css
✔ Restored css/frappe-rtl.css
✔ Restored css/printview.css
✔ Restored css/frappe-chat-web.css
✔ Restored css/web_form.css
✔ Restored css/login.css
✔ Application Assets Linked                                                                                                                                               

yarn run v1.22.10
warning ../../package.json: No license field
$ FRAPPE_ENV=production node rollup/build.js --skip_frappe
Production mode
✔ Built js/moment-bundle.min.js
✔ Built js/libs.min.js

Building erpnext assets...

Error: You need to install either node-sass or sass in order to process Sass files
Error: You need to install either node-sass or sass in order to process Sass files
✔ Built css/erpnext.css
✔ Built css/erpnext-web.css
✔ Built js/erpnext-web.min.js
✔ Built js/bank-reconciliation-tool.min.js
✔ Built js/item-dashboard.min.js
✔ Built js/point-of-sale.min.js
✔ Built js/erpnext.min.js
✔ Built css/marketplace.css
✔ Built js/marketplace.min.js
✨  Done in 21.156s

Building posawesome assets...

✔ Built js/toConsole.min.js
✔ Built js/posapp.min.js
✨  Done in 10.12s
Done in 36.31s.
$ sudo systemctl stop -- $(systemctl show -p Requires frappe-bench.target | cut -d= -f2)
$ sudo systemctl start -- $(systemctl show -p Requires frappe-bench.target | cut -d= -f2)
Bench: Deployment tool for Frappe and Frappe Applications (https://frappe.io/bench).
Open source depends on your contributions, so do give back by submitting bug reports, patches and fixes and be a part of the community :)

The only error I found was:
error /disk/service/web/home/erp/frappe-bench/apps/frappe/node_modules/node-sass: Command failed.

But after " Error: bench setup requirements" I installed node-sass in apps/frappe/ and apps/erpnext/ without success.

In addition, there was the node-sass error even before the update without any impact.