I am running MC 1.12.2 with Forge .2768. On one of my worlds I get the following screen when bringing up MC modded. It doesn't crash or give me a crash report of any kind and if I choose YES to continue, it creates a save of my world and then loads it and it will be corrupted. If I knew what mod might cause this or what in the java code of MC or Forge gives this message, I could correct my problem. Thanks for any help on this.
Grrpapa