Because of my stupid curiosity I accidentally changed my server from Paper to Quilt and now I can't turn back again. I had my world backup and when I changed to Paper and used the backup, it turned to Quilt again. Now I try to upload it but still doesn't work :(( Is there something I can operate with the world file or anything else? Pls help us cause me and my friends have spent at least 1 year
building up everything :(( 
