QuickBooks Error 6094 is usually caused by a damaged or corrupted company file. This can be caused by a virus, a power outage, or a hardware failure. It can also be caused by a damaged or corrupted Windows registry. To fix this error, you should try restoring a backup of your company file, running a virus scan, and repairing any damaged Windows registry entries. If the repair tool doesn't work, you might need to restore a corporate file backup or get in touch with Quickbooks Technical Help at (855) 738-0359.