Issue description:

player gets disconnected with a fatal error, nothing shows up on client log, server keeps running, has (pastebin) errors in the log

What happens:

crash

What you expected to happen:

take something out of my system

Steps to reproduce:

1. take something out of my system

...
Crash

Version (make sure you are on the latest version before reporting):

• Minecraft:1.12.2
• Forge:14.23.0.2531
• Refined Storage: 1.5.25

Does this issue occur on a server? [yes/no]
Yes

If a (crash)log is relevant for this issue, link it here:

https://pastebin.com/dcpWQRsY

just restart the server if you get this, it fixed it (didn't have access to server controls yesterday)