Search Index in Setup is not working

but looks like the same message … and I have no idea how it comes from…

2023-02-15 15:11:19,311 [40] [cmk.web.background-job 9519] Exception in background function
Traceback (most recent call last):
  File "/omd/sites/main/lib/python3/cmk/gui/background_job.py", line 246, in _execute_function
    func_ptr(*args, **kwargs)
  File "/omd/sites/main/lib/python3/cmk/gui/watolib/search.py", line 496, in _build_index_background
    IndexBuilder(match_item_generator_registry).build_full_index()
  File "/omd/sites/main/lib/python3/cmk/gui/watolib/search.py", line 244, in build_full_index
    self._build_index(self._registry.values())
  File "/omd/sites/main/lib/python3/cmk/gui/watolib/search.py", line 129, in _build_index
    self._do_build_index(match_item_generators)
  File "/omd/sites/main/lib/python3/cmk/gui/watolib/search.py", line 147, in _do_build_index
    self._add_language_dependent_item_generators_to_redis(
  File "/omd/sites/main/lib/python3/cmk/gui/watolib/search.py", line 184, in _add_language_dependent_item_generators_to_redis
    self._add_match_item_generator_to_redis(
  File "/omd/sites/main/lib/python3/cmk/gui/watolib/search.py", line 206, in _add_match_item_generator_to_redis
    cls._add_match_items_to_redis(
  File "/omd/sites/main/lib/python3/cmk/gui/watolib/search.py", line 222, in _add_match_items_to_redis
    for idx, match_item in enumerate(match_item_generator.generate_match_items()):
  File "/omd/sites/main/lib/python3/cmk/gui/watolib/rulespecs.py", line 1327, in generate_match_items
    yield from (
  File "/omd/sites/main/lib/python3/cmk/gui/watolib/rulespecs.py", line 1340, in <genexpr>
    if rulespec.title
  File "/omd/sites/main/lib/python3/cmk/gui/watolib/rulespecs.py", line 460, in title
    return self.valuespec.title()
  File "/omd/sites/main/lib/python3/cmk/gui/watolib/rulespecs.py", line 453, in valuespec
    return self._valuespec()
  File "<string>", line 88, in _valuespec_active_checks_snmp
  File "/omd/sites/main/lib/python3.9/typing.py", line 685, in __call__
    raise TypeError(f"Type {self._name} cannot be instantiated; "
TypeError: Type Tuple cannot be instantiated; use tuple() instead
^C
OMD[main]:~$ tail -f ~/var/log/web.log