i can t join dw 1.12.2

[istoricu]

Hi i try to join on server dw 1.12.2 i got messege and how can i fix it i want to play.

Have look at this url it is printscreen

https://imgur.com/a/DeaC0

[brunyman]

Hi, something built there is causing this error, give me a date to rollback to when it was all fine