It might be attached to a transaction that's damaged or corrupted, Annette.
You will need to delete it since the rebuild didn't resolve the error.
Once deleted, rebuild your file once again before recreating the transaction. If you're still getting the error, please contact our Technical Support Team. They will help you read and review the log files, as well as making sure that you can create a back up. Here's how:
Please add a reply below if you need more help. I'll get back to you as soon as possible.