lancom_xdsl checkmk 2.2 Wato Parameter Issue

[Maxheino]

When I open the Wato parameterization I get the following error message: Internal error: name 'ListOf' is not defined

CMK version: 2.2.0p23.cee

Error message: Exception: NameError (name 'ListOf' is not defined) Traceback: File "/omd/sites/Test22/lib/python3/cmk/gui/wsgi/applications/checkmk.py", line 183, in _process_request resp = page_handler() File "/omd/sites/Test22/lib/python3/cmk/gui/wsgi/applications/utils.py", line 107, in _call_auth func() File "/omd/sites/Test22/lib/python3/cmk/gui/pages.py", line 187, in wrapper return hc().handle_page() File "/omd/sites/Test22/lib/python3/cmk/gui/pages.py", line 51, in handle_page self.page() File "/omd/sites/Test22/lib/python3/cmk/gui/pages.py", line 146, in "page": lambda self: self._wrapped_callable[0](), File "/omd/sites/Test22/lib/python3/cmk/gui/wato/page_handler.py", line 87, in page_handler mode_instance = mode_registry.get(current_mode, ModeNotImplemented)() File "/omd/sites/Test22/lib/python3/cmk/gui/wato/pages/rulesets.py", line 783, in init super().init() File "/omd/sites/Test22/lib/python3/cmk/gui/plugins/wato/utils/base_modes.py", line 31, in init self._from_vars() File "/omd/sites/Test22/lib/python3/cmk/gui/wato/pages/rulesets.py", line 824, in _from_vars self._valuespec = self._rulespec.valuespec File "/omd/sites/Test22/lib/python3/cmk/gui/watolib/rulespecs.py", line 348, in valuespec return self._valuespec() File "/omd/sites/Test22/lib/python3/cmk/gui/watolib/rulespecs.py", line 738, in _rulespec_valuespec return _wrap_valuespec_in_timeperiod_valuespec(self._parameter_valuespec()) File "", line 69, in _parameter_valuespec_lancom_xdsl