"Quickbooks database server stopped" this error is very common because Quickbooks uses a database to store all the data of the company and many times people face this error. When this error occurs then an error message comes up which states that " it can't contact the database server" there are several methods to solve this error- first solution is that you can run Quick fix my program from the Quickbooks tool hub, the second solution is you can repair your Quickbooks desktop installation, etc. https://opencloudmanifesto.org/quickbooks-database-server-manager-network-diagnostics-failed/