Describe the bug

Inserting a bulk item filter in the detector module and middle-clicking on the inserted bulk item filter will cause a null pointer exception and the world will exit.

How to reproduce the bug

1. Place modular router
2. insert detector module into modular router
3. middle click detector module in modular router
4. insert "empty" bulk item filter in detector module
5. middle click inserted bulk item filter
6. crash

Expected behavior

Bulk Item Filter screen opens.

Additional details

Modular Routers version 13.1.0
neoforge version 21.1.77

Which Minecraft version are you using?

1.21

Crash log

https://gist.github.com/momo-i2/b8850e989d143868e4d22ee6542aac2e