Error:
Odoo Server Error

Traceback (most recent call last):
File "/home/hashim/odoo_13/odoo/http.py", line 619, in _handle_exception
return super(JsonRequest, self)._handle_exception(exception)
File "/home/hashim/odoo_13/odoo/http.py", line 309, in _handle_exception
raise pycompat.reraise(type(exception), exception, sys.exc_info()[2])
File "/home/hashim/odoo_13/odoo/tools/pycompat.py", line 14, in reraise
raise value
File "/home/hashim/odoo_13/odoo/http.py", line 664, in dispatch
result = self._call_function(**self.params)
File "/home/hashim/odoo_13/odoo/http.py", line 345, in _call_function
return checked_call(self.db, *args, **kwargs)
File "/home/hashim/odoo_13/odoo/service/model.py", line 93, in wrapper
return f(dbname, *args, **kwargs)
File "/home/hashim/odoo_13/odoo/http.py", line 338, in checked_call
result = self.endpoint(*a, **kw)
File "/home/hashim/odoo_13/odoo/http.py", line 909, in __call__
return self.method(*args, **kw)
File "/home/hashim/odoo_13/odoo/http.py", line 510, in response_wrap
response = f(*args, **kw)
File "/home/hashim/odoo_13/addons/web/controllers/main.py", line 1319, in call_kw
return self._call_kw(model, method, args, kwargs)
File "/home/hashim/odoo_13/addons/web/controllers/main.py", line 1311, in _call_kw
return call_kw(request.env[model], method, args, kwargs)
File "/home/hashim/odoo_13/odoo/api.py", line 391, in call_kw
result = _call_kw_model(method, model, args, kwargs)
File "/home/hashim/odoo_13/odoo/api.py", line 364, in _call_kw_model
result = method(recs, *args, **kwargs)
File "/home/hashim/odoo_13/odoo/models.py", line 4818, in search_read
records = self.search(domain or [], offset=offset, limit=limit, order=order)
File "/home/hashim/odoo_13/odoo/models.py", line 1609, in search
res = self._search(args, offset=offset, limit=limit, order=order, count=count)
File "/home/hashim/odoo_13/odoo/addons/base/models/ir_attachment.py", line 412, in _search
if self.env.is_system():
File "/home/hashim/odoo_13/odoo/api.py", line 523, in is_system
return self.su or self.user._is_system()
File "/home/hashim/odoo_13/odoo/tools/func.py", line 24, in __get__
value = self.fget(obj)
File "/home/hashim/odoo_13/odoo/api.py", line 530, in user
return self(su=True)['res.users'].browse(self.uid)
TypeError: __call__() got an unexpected keyword argument 'su'