A priori, the fact you modified the panel layout before the problem occurs is a mere coincidence. Your XFS filesystem to be mounted at /home is corrupted. As the log says, you need to 'umount' it and run 'xfs_repair' on it. If the filesystem is indeed mounted, the following command will tell you the corresponding device:
# mount | grep home
If that filesystem is /dev/sdaX (where "X" is a number and "a" may actually be another letter if /home is not on the first disk):
# umount /home
# xfs_repair /dev/sdaX
If that is not enough:
# xfs_repair -L /dev/sdaX
You can also do that from a live system (prefix the commands with "sudo ", without the quotes).

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