Modpack version
0.5.9

Issue
Tried to use Solo World as the world for my Server, Causes Client to say Encrypting over and over and if I click Cancel, it causes the client to freeze and crash

Logs
Multiplayer Log:
latest.log

Client Log:
latest.log

Thanks for the report. Could you please try to delete the icon from the world folder and try again?

This issue has been automatically closed because there has been no response to our request for more information from the original author. With only the information that is currently in the issue, we don't have enough information to take action. Please reach out if you have or find the answers we need so that we can investigate further.