Minecraft version & Mod Version:
MC: 1.12.2
Mod: 1.5.2

Single player or Server:
Tested Single.

Describe problem (what you were doing / what happened):
Clicking the X (Clear Search) button crashes game if JEI isn't installed.

Crash log (if any):
https://pastebin.com/hQbPRmN6

I wouldn't assume that a mod is installed if it isn't marked as a dependency

Somehow the mod thought you had JEI installed when you didnt, oops :D

https://minecraft.curseforge.com/projects/simple-storage-network/files/2633942