This QuickBooks Error 6000 - 77 is one of the most complex errors that generally takes place when a user tries to open the QuickBooks company files. There are multiple reasons following which this error triggers in the software as follows:
When QuickBooks company files are located on an external drive.
When QuickBooks is not running with Admin
Due to corrupted or damaged .ND and .TLG files.
Inappropriate folder authorization of the folder that keeps the Company file inside.
When there is a communication issue while QuickBooks is running into multi-user mode.
For requiring in-depth assistance on troubleshooting this error code, call us on +1-855-533*6333.