When QuickBooks Point of Sale is unable to create or access the application log file, the error Error initializing QBPOS application log appears. System conflicts, corrupted files, or permission issues may be the cause of this problem. Resetting log file settings, fixing the installation, or verifying folder access privileges may be necessary to fix it. Contact the knowledgeable help line at 1.855.738.2784 if you need help with QuickBooks.