Server was working fine earlier today, but sky factory 3 updated and since then, the server does not allow you to join. At first it gave the error of
"Internal Exception: java.lang.IllegalArgumentException: The name extrautils2:synergy has been registered twice, for Block{null} and Block{extrautils2:synergy} ."
I believe this issue has been fixed but now it gives the error
"Fatally missing blocks and items"