Tommy is now back online and running!
Since Tommy was powered off uncleanly there was quite a bit of corruption for anything that was being written to the disk at the time of the power loss. Most of it has been cleaned up, but there may be some issues here and there that still need to be fixed.
The hard drive had it's partition table corrupted so we had to rebuild all of those. The XFS partitions had unwritten log data so we had to mount each one to write the log data to disk, then unmount them again, and run xfs_repair on each partition. Since the master boot record was corrupted we had to reinstall grub2 on the disk. The initramfs was corrupted too so we had to rebuild that as well. Then the main Plesk database uses InnoDB engine which always breaks whenever there is any sort of unclean shutdown, so we had to fix each table one by one until Plesk would run. The Apache config files and Nginx config files had a couple vhosts that were corrupted so that had to be fixed before they would boot up.
Anyways, everyone's websites should be online now and you should be able to login. Please report any errors that you see so we can fix them. If you have an InnoDB database you might need to back it up, drop it, and import it back in. There isn't really any way to repair it otherwise. We still and always have recommended MyISAM tables for this reason.