Are you unable to use QuickBooks efficiently due to error 108? QuickBooks error 108 denotes that there is a problem with online banking. This error may occur when there are multiple bank accounts associated with QuickBooks and the online service of a bank might not be properly working or you may have updated your details in your bank but the same changes were not made in the software. To fix this error you must make sure that the details in your bank account match those on QuickBooks. It is important that you use the updated features of online banking in order to resolve this error.