Error message as follows:
crash-2021-10-17_20.07.44-client.txt

The game crashed whilst rendering overlay
Error: com.electronwill.nightconfig.core.io.WritingException: An I/O error occured
Exit Code: -1

this is literally happening to me today and i have no clue how to fix it

Closing all issues to be ready for ATM7 1.18 release tomorrow! If you are still having issues on the new version of minecraft please make a new issue thanks!