Are you concerned with QuickBooks error 108? Financial problems are the main cause of QuickBooks error number 108. This error could be the result of certain problems with your bank or QuickBooks. You might have changed your login information, but QuickBooks failed to save the changes, causing your bank or credit card company to receive a notification claiming QuickBooks is no longer linked. To correct this mistake Check the bank's website or the messaging on your credit card for any updates. If the bank's server is down, wait a little while before continuing with your operation.