Exactly as the title states, I would log into my server and upon inspecting any item in JEI the server crashes. It happens when both looking at the recipe (R key) and the utilization (U key) of any item in JEI.

My server is with APEX Hosting, 8 GB of ram. I manually updated the mods by downloading the server files from curse forge, creating the server, zipping the mods folder from it, uploading it to apex, then unzipping and removing mods that were not replaced or added by the new files.

Can confirm I can replicate this. Looks like a known issue with JEI:

mezz/JustEnoughItems#2636

Fix may be downgrading JEI to jei-1.18.1-9.1.1.48.jar ; have not successfully tested this yet,

This has just been fixed in jei-1.18.1-9.1.2.52

Cool I'll update to 0.2.18 or whatever the next version of the pack is.