Error while update v7.1 to v9

Thanks for your reply.
but this link is not help to me. so i uninstall and removed this app erpnext_shopify, and then run bench update now i got this error…
/home/frappe/frappe-bench# sudo bench update
INFO:bench.utils:updating bench
INFO:bench.utils:git pull
Already up-to-date.
INFO:bench.utils:./env/bin/pip install Pillow
Requirement already satisfied: Pillow in ./env/local/lib/python2.7/site-packages
INFO:bench.app:pulling frappe
INFO:bench.utils:git pull upstream master
From GitHub - frappe/frappe: Low code web framework for real world applications, in Python and Javascript

  • branch master → FETCH_HEAD
    Already up-to-date.
    INFO:bench.utils:find . -name “*.pyc” -delete
    INFO:bench.app:pulling erpnext
    INFO:bench.utils:git pull upstream master
    From GitHub - frappe/erpnext: Free and Open Source Enterprise Resource Planning (ERP)
  • branch master → FETCH_HEAD
    Already up-to-date.
    INFO:bench.utils:find . -name “*.pyc” -delete
    INFO:bench.app:pulling fleet_management
    INFO:bench.utils:git pull upstream master
    From GitHub - dalwadani/fleet_management: Frappe app for managing the organization fleet.
  • branch master → FETCH_HEAD
    Already up-to-date.
    INFO:bench.utils:find . -name “*.pyc” -delete
    Updating Python libraries…
    INFO:bench.utils:./env/bin/pip install --upgrade pip
    /home/frappe/frappe-bench/env/lib/python2.7/site-packages/pip/vendor/requests/packages/urllib3/util/ssl.py:318: SNIMissingWarning: An HTTPS request has been made, but the SNI (Subject Name Indication) extension to TLS is not available on this platform. This may cause the server to present an incorrect TLS certificate, which can cause validation failures. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.io/en/latest/security.html#snimissingwarning.
    SNIMissingWarning
    /home/frappe/frappe-bench/env/lib/python2.7/site-packages/pip/vendor/requests/packages/urllib3/util/ssl.py:122: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. You can upgrade to a newer version of Python to solve this. For more information, see Advanced Usage - urllib3 2.0.0a2 documentation.
    InsecurePlatformWarning
    Requirement already up-to-date: pip in ./env/lib/python2.7/site-packages
    INFO:bench.utils:./env/bin/pip install -q -r /home/frappe/.bench/requirements.txt
    INFO:bench.utils:./env/bin/pip install -q -r ./apps/fleet_management/requirements.txt
    INFO:bench.utils:./env/bin/pip install -q -r ./apps/frappe/requirements.txt
    INFO:bench.utils:./env/bin/pip install -q -r ./apps/erpnext/requirements.txt
    Updating node libraries…
    INFO:bench.utils:npm install
    npm WARN optional Skipping failed optional dependency /chokidar/fsevents:
    npm WARN notsup Not compatible with your operating system or architecture: fsevents@1.1.2
    npm WARN frappe@ No description
    Backing up sites…
    Patching sites…
    Migrating site1.local
    Executing frappe.patches.v9_1.add_sms_sender_name_as_parameters in site1.local (1bd3e0294da19198)
    /home/frappe/frappe-bench/apps/erpnext/erpnext/setup/doctype/sms_settings/sms_settings.json missing
    Traceback (most recent call last):
    File “/usr/lib/python2.7/runpy.py”, line 162, in _run_module_as_main
    main”, fname, loader, pkg_name)
    File “/usr/lib/python2.7/runpy.py”, line 72, in _run_code
    exec code in run_globals
    File “/home/frappe/frappe-bench/apps/frappe/frappe/utils/bench_helper.py”, line 94, in
    main()
    File “/home/frappe/frappe-bench/apps/frappe/frappe/utils/bench_helper.py”, line 18, in main
    click.Group(commands=commands)(prog_name=‘bench’)
    File “/home/frappe/frappe-bench/env/local/lib/python2.7/site-packages/click/core.py”, line 716, in call
    return self.main(*args, **kwargs)
    File “/home/frappe/frappe-bench/env/local/lib/python2.7/site-packages/click/core.py”, line 696, in main
    rv = self.invoke(ctx)
    File “/home/frappe/frappe-bench/env/local/lib/python2.7/site-packages/click/core.py”, line 1060, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
    File “/home/frappe/frappe-bench/env/local/lib/python2.7/site-packages/click/core.py”, line 1060, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
    File “/home/frappe/frappe-bench/env/local/lib/python2.7/site-packages/click/core.py”, line 889, in invoke
    return ctx.invoke(self.callback, **ctx.params)
    File “/home/frappe/frappe-bench/env/local/lib/python2.7/site-packages/click/core.py”, line 534, in invoke
    return callback(*args, **kwargs)
    File “/home/frappe/frappe-bench/env/local/lib/python2.7/site-packages/click/decorators.py”, line 17, in new_func
    return f(get_current_context(), *args, **kwargs)
    File “/home/frappe/frappe-bench/apps/frappe/frappe/commands/init.py”, line 24, in _func
    ret = f(frappe._dict(ctx.obj), *args, **kwargs)
    File “/home/frappe/frappe-bench/apps/frappe/frappe/commands/site.py”, line 217, in migrate
    migrate(context.verbose, rebuild_website=rebuild_website)
    File “/home/frappe/frappe-bench/apps/frappe/frappe/migrate.py”, line 31, in migrate
    frappe.modules.patch_handler.run_all()
    File “/home/frappe/frappe-bench/apps/frappe/frappe/modules/patch_handler.py”, line 29, in run_all
    if not run_single(patchmodule = patch):
    File “/home/frappe/frappe-bench/apps/frappe/frappe/modules/patch_handler.py”, line 63, in run_single
    return execute_patch(patchmodule, method, methodargs)
    File “/home/frappe/frappe-bench/apps/frappe/frappe/modules/patch_handler.py”, line 83, in execute_patch
    frappe.get_attr(patchmodule.split()[0] + “.execute”)()
    File “/home/frappe/frappe-bench/apps/frappe/frappe/patches/v9_1/add_sms_sender_name_as_parameters.py”, line 11, in execute
    sms_settings = frappe.get_doc(“SMS Settings”)
    File “/home/frappe/frappe-bench/apps/frappe/frappe/init.py”, line 622, in get_doc
    return frappe.model.document.get_doc(*args, **kwargs)
    File “/home/frappe/frappe-bench/apps/frappe/frappe/model/document.py”, line 66, in get_doc
    controller = get_controller(doctype)
    File “/home/frappe/frappe-bench/apps/frappe/frappe/model/base_document.py”, line 35, in get_controller
    module = load_doctype_module(doctype, module_name)
    File “/home/frappe/frappe-bench/apps/frappe/frappe/modules/utils.py”, line 185, in load_doctype_module
    raise ImportError(‘Module import failed for {0} ({1})’.format(doctype, module_name + ’ Error: ’ + str(e)))
    ImportError: Module import failed for SMS Settings (erpnext.setup.doctype.sms_settings.sms_settings Error: No module named sms_settings.sms_settings)

Please assist me to resolve this error