AttributeError: NoneType object has no attribute CAPCol

I get this error when toggling edit mode or when switching object selection.
```
Python: Traceback (most recent call last):
  File "C:\Users\Phyksar\AppData\Roaming\Blender Foundation\Blender\3.5\scripts\addons\Capsule\user_interface.py", line 604, in draw
    grp = entry.collection.CAPCol
AttributeError: 'NoneType' object has no attribute 'CAPCol'
```