'QBDBMGRN Not Running On This Computer' pop-up message appearing? Be at ease. It's a frequent QuickBooks bug that's frequently brought on by system conflicts or service problems. Our knowledgeable staff at QB Error Support quickly determines the cause of the problem and fixes it, allowing your QuickBooks database manager to continue operating without interruption for your business. Please give our support staff a call at 1.855.856.0042 as soon as possible if you need QuickBooks support.