Hi, txs for the module, i installed in v12 CE, but its not showing qty in POS, the module says installed, but can figure out why its not working for me. Could you please tell me what to do. txs

Error: Odoo Server Error Traceback (most recent call last): File "/home/odoo/src/odoo/12.0/odoo/http.py", line 654, in _handle_exception return super(JsonRequest, self)._handle_exception(exception) File "/home/odoo/src/odoo/12.0/odoo/http.py", line 312, in _handle_exception raise pycompat.reraise(type(exception), exception, sys.exc_info()[2]) File "/home/odoo/src/odoo/12.0/odoo/tools/pycompat.py", line 87, in reraise raise value File "/home/odoo/src/odoo/12.0/odoo/http.py", line 696, in dispatch result = self._call_function(**self.params) File "/home/odoo/src/odoo/12.0/odoo/http.py", line 344, in _call_function return checked_call(self.db, *args, **kwargs) File "/home/odoo/src/odoo/12.0/odoo/service/model.py", line 97, in wrapper return f(dbname, *args, **kwargs) File "/home/odoo/src/odoo/12.0/odoo/http.py", line 337, in checked_call result = self.endpoint(*a, **kw) File "/home/odoo/src/odoo/12.0/odoo/http.py", line 939, in __call__ return self.method(*args, **kw) File "/home/odoo/src/odoo/12.0/odoo/http.py", line 517, in response_wrap response = f(*args, **kw) File "/home/odoo/src/odoo/12.0/addons/web/controllers/main.py", line 962, in call_kw return self._call_kw(model, method, args, kwargs) File "/home/odoo/src/odoo/12.0/addons/web/controllers/main.py", line 954, in _call_kw return call_kw(request.env[model], method, args, kwargs) File "/home/odoo/src/odoo/12.0/odoo/api.py", line 745, in call_kw return _call_kw_model(method, model, args, kwargs) File "/home/odoo/src/odoo/12.0/odoo/api.py", line 718, in _call_kw_model result = method(recs, *args, **kwargs) File "/home/odoo/src/odoo/12.0/odoo/models.py", line 1369, in load_views for [v_id, v_type] in views File "/home/odoo/src/odoo/12.0/odoo/models.py", line 1369, in for [v_id, v_type] in views File "/home/odoo/src/odoo/12.0/odoo/models.py", line 1455, in fields_view_get xarch, xfields = View.postprocess_and_fields(self._name, etree.fromstring(result['arch']), view_id) File "/home/odoo/src/odoo/12.0/odoo/addons/base/models/ir_ui_view.py", line 1092, in postprocess_and_fields self.raise_view_error(message, view_id) File "/home/odoo/src/odoo/12.0/odoo/addons/base/models/ir_ui_view.py", line 545, in raise_view_error raise ValueError(message) ValueError: Field `payment_details` does not exist Error context: View `n/a` [view_id: n/a, xml_id: n/a, model: n/a, parent_id: n/a]