Problem with Printer batery

Hello guys ! I have a big problem on my server. An error prevents me from working on my darkrp

Error:
There is 1 Lua problem!
Please check your console for more information!
[ERROR] A runtime error has occurred in “your custom entities” on line -1.
The best help I can give you is this:

The category of “Money Printer Battery” (“Other”) does not exist!

Hints:
- Make sure the category is created with DarkRP.createCategory.
- The category name is case sensitive!
- Categories must be created before DarkRP finished loading.

The responsibility for this error lies with (the authors of) one (or more) of these files:
your custom entities
------- End of Simplerr error -------

It stated in the error that you need to make a category for the printer battery.