Lighthouse using IDA 9.2 fixes triggers AttributeError

[otto-b]

I'm using IDA 9.2 and applied the fixes #157. Loading and highlighting coverage works fine but recently there was an AttributeError:

[Lighthouse] Rebasing Lighthouse (0x7FFEC9BF0000 --> 0x7FFF65FE0000)
[Lighthouse] Lighthouse experienced an error... please file an issue on GitHub with this traceback:
[Lighthouse]
[Lighthouse] File "C:\.../Programs/IdaPro/plugins\lighthouse\util\disassembler\ida_api.py", line 48, in wrapper
[Lighthouse] thunk()
[Lighthouse] File "C:\.../Programs/IdaPro/plugins\lighthouse\util\disassembler\ida_api.py", line 44, in thunk
[Lighthouse] output[0] = function(*args, **kwargs)
[Lighthouse] File "C:\.../Programs/IdaPro/plugins\lighthouse\metadata.py", line 778, in _scheduled_worker
[Lighthouse] self.lctx.director.refresh()
[Lighthouse] File "C:\.../Programs/IdaPro/plugins\lighthouse\director.py", line 1350, in refresh
[Lighthouse] self._refresh()
[Lighthouse] File "C:\.../Programs/IdaPro/plugins\lighthouse\director.py", line 1390, in _refresh
[Lighthouse] self._notify_refreshed()
[Lighthouse] ~~~~~~~~~~~~~~~~~~~~~~^^
[Lighthouse] File "C:\.../Programs/IdaPro/plugins\lighthouse\director.py", line 346, in _notify_refreshed
[Lighthouse] notify_callback(self._refreshed_callbacks)
[Lighthouse] ~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^
[Lighthouse] File "C:\.../Programs/IdaPro/plugins\lighthouse\util\misc.py", line 189, in notify_callback
[Lighthouse] callback(obj, *args)
[Lighthouse] ~~~~~~~~^^^^^^^^^^^^
[Lighthouse] File "C:\.../Programs/IdaPro/plugins\lighthouse\util\disassembler\ida_api.py", line 48, in wrapper
[Lighthouse] thunk()
[Lighthouse] ~~~~~^^
[Lighthouse] File "C:\.../Programs/IdaPro/plugins\lighthouse\util\disassembler\ida_api.py", line 44, in thunk
[Lighthouse] output[0] = function(*args, **kwargs)
[Lighthouse] ~~~~~~~~^^^^^^^^^^^^^^^^^
[Lighthouse] File "C:\.../Programs/IdaPro/plugins\lighthouse\ui\coverage_overview.py", line 232, in refresh
[Lighthouse] self._table_model.refresh()
[Lighthouse] ^^^^^^^^^^^^^^^^^^^^^^^^^
[Lighthouse] AttributeError: 'NoneType' object has no attribute 'refresh'