how to fix this error

RPC_ERROR

Odoo Server Error

Traceback (most recent call last):

File "/home/odoo/src/odoo/saas-15.2/odoo/addons/base/models/ir_http.py", line 237, in _dispatch

result = request.dispatch()

File "/home/odoo/src/odoo/saas-15.2/odoo/http.py", line 687, in dispatch

result = self._call_function(**self.params)

File "/home/odoo/src/odoo/saas-15.2/odoo/http.py", line 359, in _call_function

return checked_call(self.db, *args, **kwargs)

File "/home/odoo/src/odoo/saas-15.2/odoo/service/model.py", line 94, in wrapper

return f(dbname, *args, **kwargs)

File "/home/odoo/src/odoo/saas-15.2/odoo/http.py", line 348, in checked_call

result = self.endpoint(*a, **kw)

File "/home/odoo/src/odoo/saas-15.2/odoo/http.py", line 915, in __call__

return self.method(*args, **kw)

File "/home/odoo/src/odoo/saas-15.2/odoo/http.py", line 535, in response_wrap

response = f(*args, **kw)

File "/home/odoo/src/odoo/saas-15.2/addons/web/controllers/main.py", line 1365, in call_kw

return self._call_kw(model, method, args, kwargs)

File "/home/odoo/src/odoo/saas-15.2/addons/web/controllers/main.py", line 1357, in _call_kw

return call_kw(request.env[model], method, args, kwargs)

File "/home/odoo/src/odoo/saas-15.2/odoo/api.py", line 457, in call_kw

result = _call_kw_model(method, model, args, kwargs)

File "/home/odoo/src/odoo/saas-15.2/odoo/api.py", line 430, in _call_kw_model

result = method(recs, *args, **kwargs)

File "/home/odoo/src/odoo/saas-15.2/addons/contacts/models/res_users.py", line 15, in systray_get_activities

activities = super(Users, self).systray_get_activities()

File "/home/odoo/src/odoo/saas-15.2/addons/calendar/models/res_users.py", line 37, in systray_get_activities

res = super(Users, self).systray_get_activities()

File "/home/odoo/src/odoo/saas-15.2/addons/mail/models/res_users.py", line 187, in systray_get_activities

module = self.env[activity['model']]._original_module

File "/home/odoo/src/odoo/saas-15.2/odoo/api.py", line 537, in __getitem__

return self.registry[model_name](self, (), ())

File "/home/odoo/src/odoo/saas-15.2/odoo/modules/registry.py", line 183, in __getitem__

return self.models[model_name]

Exception



The above exception was the direct cause of the following exception:



Traceback (most recent call last):

File "/home/odoo/src/odoo/saas-15.2/odoo/http.py", line 643, in _handle_exception

return super(JsonRequest, self)._handle_exception(exception)

File "/home/odoo/src/odoo/saas-15.2/odoo/http.py", line 301, in _handle_exception

raise exception.with_traceback(None) from new_cause

KeyError: 'account.move'