by Emma Richardson.
I would guess that it is the checksum field (12 has the huge entry and if you count across your column headings, you will get to checksum). You could try going to the backup controller table and changing that column as suggested by the error message. However, BACK UP first!!
No guarantees this will work or not break something but I know that I have been able to force some similar things through in this manner.
Oh, did I mention BACK UP First!!!!