i dont know how to fix this, im using it on 1,12,2. i have googled it and many people seem to have this problem and they have to go into the config. when i do that there is 5000 strings of code and i dont want to sit here for a whole day. how can i fix this?

same problem bro

im using 1.19.2, i just updated it and all my configs changed, after i re did every mob, they still kept spawning naturally, this update isnt doing what its suppose to

when i do that there is 5000 strings of code and i dont want to sit here for a whole day. how can i fix this?

This mod isn't meant to disable every mob spawn, it's meant to allow players to disable very specific mobs from their world. If you really want to disable everything you can use a text editor like Notepad++ that has a find and replace option to replace all instances of a given string. Just be careful not to disable anything important like players, minecarts, etc.