yeah don't go and delete files if you don't know what they're for
#Authentication not working and missing files
chilly knot
if the Modrinth app still works, you can repair the modpack in its settings. otherwise, you'll have to reinstall the launcher
modest bluff
Modrinth is fine and working however the servers still cant be reached
that was before
chilly knot
check to make sure there's no firewalls or similar on your pc that might be blocking the connection