PAC3 Event "is_touching" causing script errors

[SoundCrafterYT]

For some reason, the is_touching events are not working. When I typed is_touching, it showed me this error:

[PAC3] lua/pac3/core/client/parts/event.lua:971: Tried to use a NULL entity! 1. BoundingRadius - [C]:-1 2. GetNiceName - lua/pac3/core/client/parts/event.lua:971 3. get - lua/pac3/core/client/base_part.lua:92 4. Populate - lua/pac3/editor/client/panels/properties.lua:714 5. PopulateProperties - lua/pac3/editor/client/logic.lua:10 6. Call - lua/pac3/editor/client/parts.lua:515 7. OnValueChanged - lua/pac3/editor/client/panels/properties.lua:832 8. OnEnter - lua/pac3/editor/client/panels/properties.lua:1615 9. unknown - lua/vgui/dtextentry.lua:79

[PAC3] lua/pac3/core/client/parts/event.lua:971: Tried to use a NULL entity! 1. BoundingRadius - [C]:-1 2. GetNiceName - lua/pac3/core/client/parts/event.lua:971 3. GetName - lua/pac3/core/client/base_part.lua:92 4. unknown - lua/pac3/editor/client/panels/tree.lua:156

[PAC3] lua/pac3/core/client/parts/event.lua:971: Tried to use a NULL entity! 1. BoundingRadius - [C]:-1 2. GetNiceName - lua/pac3/core/client/parts/event.lua:971 3. unknown - lua/pac3/core/client/base_part.lua:92 4. ToSaveTable - lua/pac3/core/client/base_part.lua:1007 5. ToSaveTable - lua/pac3/core/client/base_part.lua:1024 6. unknown - lua/pac3/editor/client/saved_parts.lua:111