Issue Description:

When someone join on server that reproduce the error, and server closes automatically.

Affected Versions:

• EnderIO: 5.0.46
• EnderCore: 0.5.59
• Minecraft: 1.12.2
• Forge: 14.23.5.2838
• SpongeForge? No
• Optifine? Yes
• Server

Your most recent log file where the issue was present:

https://pastebin.com/k6wKa7ss

Full crash report please

Here go.
crash-2019-08-01_10.27.23-server.txt

Alright, i will talk with him. Thanks.

That's a kettle issue, you need to talk to them as I have no idea what's happening there.