The major cause of occurring are- incorrect billing or wrong billing information; corrupted or damaged company files; or, the QuickBooks software is not registered by you. If any issue is present you may see these errors: QuickBooks error 12000, error 12512, error 15240, error 15271, error 17337, error PS077 and PS032, error PS034 and PS038. If you encounter any of these errors, either follow our QuickBooks error fix guides or connect with our QuickBooks professionals.