To resolve this problem, the first step according to quickbooks’ website is to delete the .ND and .TLG

If there is still a problem then there are more steps that I didn’t have to use
https://quickbooks.intuit.com/learn-support/en-us/help-article/accounting-bookkeeping/resolve-error-6000-opening-company-file/L7zrN1dk2_US_en_US

original post
https://quickbooks.intuit.com/learn-support/en-us/install/error-codes-6190-and-816/00/183477