Hello,
I am using your mod in 1.12.2 version 1.4 but I am having a problem ...
When I restart my server, if I try to open the job gui with the J key, it will kick me from the server with this error on the screen: "A fatal error has occurred, this connection is terminated"
Here is the error that appears in the server logs: https://pastebin.com/SHL4sXJn
Please help me solve this problem