QuickBooks Error 6189 is a runtime error that often occurs when trying to access a company file in QuickBooks. This error typically signifies a discrepancy between the company file and the multi-user network, which prevents QuickBooks from accessing the file. It can be caused by several factors, such as corrupted QuickBooks installation files, problems with the multi-user mode, or issues with file access permissions. Here’s how you can troubleshoot and resolve this error: