As soon as the web console no longer has access to the database, for example, because the authorized SQL user no longer exists in the background or the password has been changed, the following error messages appear.
During the installation of the Enterprise Manager, an SQL user is stored who is responsible for communication with the database. If this user is deleted or the password changed, the database is no longer accessible. This user is stored in 2 files and must also be adapted there. These are the files "EmServer.exe.config" and "EmImport.exe.config" (default: C:\Program Files\Matrix42\Matrix42 Enterprise Manager\Bin). If the file is searched, the DbServer, DbName, DbAccount, and DbPassword are stored here. These have to be adapted manually and afterward the services "M42EmServer" and "M42EmImport" have to be restarted. Afterward the access should work as usual again.