New-site Error: ImportError: Module import failed for Dashboard Chart Source

It was good before, (No upgrade)but suddenly I just want to create a new site, but, like this:
ubuntu@VM-20-9-ubuntu:~/frappe-bench$ bench new-site abcd
MySQL root password:

Installing frappe…
Updating DocTypes for frappe : [========================= ] 63%Traceback (most recent call last):
File “/home/ubuntu/frappe-bench/apps/frappe/frappe/modules/utils.py”, line 205, in load_doctype_module
doctype_python_modules[key] = frappe.get_module(module_name)
File “/home/ubuntu/frappe-bench/apps/frappe/frappe/init.py”, line 981, in get_module
return importlib.import_module(modulename)
File “/usr/lib/python3.8/importlib/init.py”, line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File “”, line 1014, in _gcd_import
File “”, line 991, in _find_and_load
File “”, line 961, in _find_and_load_unlocked
File “”, line 219, in _call_with_frames_removed
File “”, line 1014, in _gcd_import
File “”, line 991, in _find_and_load
File “”, line 973, in _find_and_load_unlocked
ModuleNotFoundError: No module named ‘frappe.core.doctype.dashboard_chart_source’

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File “/usr/lib/python3.8/runpy.py”, line 194, in _run_module_as_main
return _run_code(code, main_globals, None,
File “/usr/lib/python3.8/runpy.py”, line 87, in _run_code
exec(code, run_globals)
File “/home/ubuntu/frappe-bench/apps/frappe/frappe/utils/bench_helper.py”, line 104, in
main()
File “/home/ubuntu/frappe-bench/apps/frappe/frappe/utils/bench_helper.py”, line 19, in main
click.Group(commands=commands)(prog_name=‘bench’)
File “/home/ubuntu/frappe-bench/env/lib/python3.8/site-packages/click/core.py”, line 829, in call
return self.main(*args, **kwargs)
File “/home/ubuntu/frappe-bench/env/lib/python3.8/site-packages/click/core.py”, line 782, in main
rv = self.invoke(ctx)
File “/home/ubuntu/frappe-bench/env/lib/python3.8/site-packages/click/core.py”, line 1259, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File “/home/ubuntu/frappe-bench/env/lib/python3.8/site-packages/click/core.py”, line 1259, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File “/home/ubuntu/frappe-bench/env/lib/python3.8/site-packages/click/core.py”, line 1066, in invoke
return ctx.invoke(self.callback, **ctx.params)
File “/home/ubuntu/frappe-bench/env/lib/python3.8/site-packages/click/core.py”, line 610, in invoke
return callback(*args, **kwargs)
File “/home/ubuntu/frappe-bench/apps/frappe/frappe/commands/site.py”, line 38, in new_site
_new_site(db_name, site, mariadb_root_username=mariadb_root_username,
File “/home/ubuntu/frappe-bench/apps/frappe/frappe/installer.py”, line 81, in _new_site
install_app(app, verbose=verbose, set_as_patched=not source_sql)
File “/home/ubuntu/frappe-bench/apps/frappe/frappe/installer.py”, line 162, in install_app
sync_for(name, force=True, sync_everything=True, verbose=verbose, reset_permissions=True)
File “/home/ubuntu/frappe-bench/apps/frappe/frappe/model/sync.py”, line 70, in sync_for
import_file_by_path(doc_path, force=force, ignore_version=True, reset_permissions=reset_permissions)
File “/home/ubuntu/frappe-bench/apps/frappe/frappe/modules/import_file.py”, line 130, in import_file_by_path
import_doc(
File “/home/ubuntu/frappe-bench/apps/frappe/frappe/modules/import_file.py”, line 209, in import_doc
controller = get_controller(docdict[‘doctype’])
File “/home/ubuntu/frappe-bench/apps/frappe/frappe/model/base_document.py”, line 74, in get_controller
site_controllers[doctype] = _get_controller()
File “/home/ubuntu/frappe-bench/apps/frappe/frappe/model/base_document.py”, line 56, in _get_controller
module = load_doctype_module(doctype, module_name)
File “/home/ubuntu/frappe-bench/apps/frappe/frappe/modules/utils.py”, line 207, in load_doctype_module
raise ImportError(‘Module import failed for {0} ({1})’.format(doctype, module_name + ’ Error: ’ + str(e)))
ImportError: Module import failed for Dashboard Chart Source (frappe.core.doctype.dashboard_chart_source.dashboard_chart_source Error: No module named ‘frappe.core.doctype.dashboard_chart_source’)