FTB will be offline for a later period today for maintenance.

Over 250 worlds have been created in Mystcraft, this is at least 250 x 9 chunks being loaded into the sever at start-up for spawn areas, and is causing the server to crash without manual intervention, according to the console.

Due to the significant problem this is causing with automatic restarts, a number of MystCraft worlds will be deleted today.

The plan of action will to delete at least 1/2 to 3/4 of the worlds by file size or last access time, starting by the smallest/oldest, this will then occur every so often to prevent the server from crashing.