Getting ModuleNotFoundError for "not-installed" app

[ajiragroup]

I had downloaded "frappe_whatsapp" app on my production server that runs two instances of erpnext. This app "frapp_whatsapp" is installed in one instance only. (say: erp2.example.com) but not on erp1.example.com.

I found some problems with the app "frappe_whatsapp" and I tried to un-install it rom erp2 but failed.

Now erp2.example.com is throwing Internal server error.
And,
erp1.example.com gives this error:

App Versions

{
	"erpnext": "15.20.6",
	"frappe": "15.23.0",
	"hrms": "15.19.0",
	"payments": "0.0.1",
	"print_designer": "1.2.0"
}

Route

Workspaces/private/Home

Traceback

Traceback (most recent call last):
  File "apps/frappe/frappe/utils/caching.py", line 55, in wrapper
    return frappe.local.request_cache[func][args_key]
KeyError: 5740354900026072187

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "apps/frappe/frappe/app.py", line 95, in application
    init_request(request)
  File "apps/frappe/frappe/app.py", line 193, in init_request
    for before_request_task in frappe.get_hooks("before_request"):
  File "apps/frappe/frappe/__init__.py", line 1594, in get_hooks
    hooks = _dict(_load_app_hooks())
  File "apps/frappe/frappe/utils/caching.py", line 57, in wrapper
    return_val = func(*args, **kwargs)
  File "apps/frappe/frappe/__init__.py", line 1563, in _load_app_hooks
    app_hooks = get_module(f"{app}.hooks")
  File "apps/frappe/frappe/__init__.py", line 1429, in get_module
    return importlib.import_module(modulename)
  File "/usr/lib/python3.10/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1050, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
  File "<frozen importlib._bootstrap>", line 992, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
  File "<frozen importlib._bootstrap>", line 1050, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1004, in _find_and_load_unlocked
ModuleNotFoundError: No module named 'frappe_whatsapp'

Request Data

{
	"type": "POST",
	"args": {
		"name": "leaderboard"
	},
	"freeze": true,
	"headers": {},
	"error_handlers": {},
	"url": "/api/method/frappe.desk.desk_page.getpage",
	"request_id": null
}

Response Data

{
	"exception": "ModuleNotFoundError: No module named 'frappe_whatsapp'",
	"exc_type": "ModuleNotFoundError"
}

[karanwilson]

Hi @ajiragroup,

Please try:-
(for both sites)
bench --site site-name migrate

sudo supervisorctl restart all

@nabinhait