Hey Community,

i got an error while installion the PoS Application. Can someone pls help me?

Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/odoo/http.py", line 638, in _handle_exception    return super(JsonRequest, self)._handle_exception(exception)  File "/usr/lib/python2.7/dist-packages/odoo/http.py", line 675, in dispatch    result = self._call_function(**self.params)  File "/usr/lib/python2.7/dist-packages/odoo/http.py", line 331, in _call_function    return checked_call(self.db, *args, **kwargs)  File "/usr/lib/python2.7/dist-packages/odoo/service/model.py", line 119, in wrapper    return f(dbname, *args, **kwargs)  File "/usr/lib/python2.7/dist-packages/odoo/http.py", line 324, in checked_call    result = self.endpoint(*a, **kw)  File "/usr/lib/python2.7/dist-packages/odoo/http.py", line 933, in __call__    return self.method(*args, **kw)  File "/usr/lib/python2.7/dist-packages/odoo/http.py", line 504, in response_wrap    response = f(*args, **kw)  File "/usr/lib/python2.7/dist-packages/odoo/addons/web/controllers/main.py", line 866, in call_button    action = self._call_kw(model, method, args, {})  File "/usr/lib/python2.7/dist-packages/odoo/addons/web/controllers/main.py", line 854, in _call_kw    return call_kw(request.env[model], method, args, kwargs)  File "/usr/lib/python2.7/dist-packages/odoo/api.py", line 681, in call_kw    return call_kw_multi(method, model, args, kwargs)  File "/usr/lib/python2.7/dist-packages/odoo/api.py", line 672, in call_kw_multi    result = method(recs, *args, **kwargs)  File "/usr/lib/python2.7/dist-packages/odoo/addons/base/module/module.py", line 410, in button_immediate_install    return self._button_immediate_function(type(self).button_install)  File "/usr/lib/python2.7/dist-packages/odoo/addons/base/module/module.py", line 484, in _button_immediate_function    modules.registry.Registry.new(self._cr.dbname, update_module=True)  File "/usr/lib/python2.7/dist-packages/odoo/modules/registry.py", line 78, in new    odoo.modules.load_modules(registry._db, force_demo, status, update_module)  File "/usr/lib/python2.7/dist-packages/odoo/modules/loading.py", line 337, in load_modules    loaded_modules, update_module)  File "/usr/lib/python2.7/dist-packages/odoo/modules/loading.py", line 235, in load_marked_modules    loaded, processed = load_module_graph(cr, graph, progressdict, report=report, skip_modules=loaded_modules, perform_checks=perform_checks)  File "/usr/lib/python2.7/dist-packages/odoo/modules/loading.py", line 135, in load_module_graph    registry.setup_models(cr, partial=True)  File "/usr/lib/python2.7/dist-packages/odoo/modules/registry.py", line 290, in setup_models    model._setup_base(partial)  File "/usr/lib/python2.7/dist-packages/odoo/models.py", line 2786, in _setup_base    field = cls0._fields[name]KeyError: 'pos_security_pin'

Greetings Thomas