Hi,
I has develop a two applications with odoo 15 Studio. All right with testing in branch database. During import process on main database, this error message appears: (Note: branch stage database and main database have exactly the same installed applications)
RPC_ERROR
Odoo Server Error
Traceback (most recent call last):
  File "/home/odoo/src/odoo/odoo/tools/cache.py", line 85, in lookup
    r = d[key]
  File "", line 2, in __getitem__
  File "/home/odoo/src/odoo/odoo/tools/func.py", line 87, in locked
    return func(inst, *args, **kwargs)
  File "/home/odoo/src/odoo/odoo/tools/lru.py", line 34, in __getitem__
    a = self.d[obj]
KeyError: ('ir.model.access', , 2, 'write')
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
  File "/home/odoo/src/odoo/odoo/http.py", line 1583, in _serve_db
    return service_model.retrying(self._serve_ir_http, self.env)
  File "/home/odoo/src/odoo/odoo/service/model.py", line 134, in retrying
    result = func()
  File "/home/odoo/src/odoo/odoo/http.py", line 1610, in _serve_ir_http
    response = self.dispatcher.dispatch(rule.endpoint, args)
  File "/home/odoo/src/odoo/odoo/http.py", line 1807, in dispatch
    result = self.request.registry['ir.http']._dispatch(endpoint)
  File "/home/odoo/src/odoo/odoo/addons/base/models/ir_http.py", line 154, in _dispatch
    result = endpoint(**request.params)
  File "/home/odoo/src/odoo/odoo/http.py", line 696, in route_wrapper
    result = endpoint(self, *args, **params_ok)
  File "/home/odoo/src/odoo/addons/web/controllers/dataset.py", line 46, in call_button
    action = self._call_kw(model, method, args, kwargs)
  File "/home/odoo/src/odoo/addons/web/controllers/dataset.py", line 33, in _call_kw
    return call_kw(request.env[model], method, args, kwargs)
  File "/home/odoo/src/odoo/odoo/api.py", line 461, in call_kw
    result = _call_kw_multi(method, model, args, kwargs)
  File "/home/odoo/src/odoo/odoo/api.py", line 448, in _call_kw_multi
    result = method(recs, *args, **kwargs)
  File "/home/odoo/src/odoo/addons/base_import_module/models/base_import_module.py", line 24, in import_module
    self.write({'state': 'done', 'import_message': res[0]})
  File "/home/odoo/src/odoo/odoo/models.py", line 3646, in write
    self.check_access_rights('write')
  File "/home/odoo/src/odoo/odoo/models.py", line 3432, in check_access_rights
    return self.env['ir.model.access'].check(self._name, operation, raise_exception)
  File "/home/odoo/src/odoo/odoo/addons/base/models/ir_model.py", line 1842, in check
    has_access = model in self._get_allowed_models(mode)
  File "", line 2, in _get_allowed_models
  File "/home/odoo/src/odoo/odoo/tools/cache.py", line 90, in lookup
    value = d[key] = self.method(*args, **kwargs)
  File "/home/odoo/src/odoo/odoo/addons/base/models/ir_model.py", line 1810, in _get_allowed_models
    self.env.cr.execute(f"""
  File "/home/odoo/src/odoo/odoo/sql_db.py", line 313, in execute
    res = self._obj.execute(query, params)
psycopg2.errors.InFailedSqlTransaction: current transaction is aborted, commands ignored until end of transaction block
The above server error caused the following client error:
RPC_ERROR: Odoo Server Error
    at makeErrorFromResponse (https://domain.com/web/assets/235-c9d1a34/web.assets_backend.min.js:977:163)
    at XMLHttpRequest. (https://domain.com/web/assets/235-c9d1a34/web.assets_backend.min.js:985:13)
