If OpusFlow CRM mentions errors in your database-file, or a corrupt database, you can open the database in MS Access. In most cases MS Access will ask you if you want to repair the database. When you click "Yes", the repair process will start automatically.

If MS Access does not come up with this problem, you can start this process manually through "Tools" -> "Database utilities" -> "Compact and repair database".

If it is impossible to create a replica of the database (laptop use), then you can also try to repair the database.

When making a replica, it is also possible that MS Access refuses to make a replica. This can be solved by "Tools" -> "Replication" -> "Recover design master". After that the network database will re-open, and you can create a replica on your local drive with "Tools" -> "Replication" -> "Create replica".

If all previous solutions fail, the last possibility is to start an empty database ("File" -> "New" -> "Blank database") and import all the data of your old database into the new one. Finally you can rename the old database and put the new database in place of the old one.

To import the data into the new database, choose:
"File" -> "Get external data" -> "Import" -> (Choose old database) -> on the tabs "Tables", "Queries" and "Reports", choose "Select all" (3 times). After that, press "OK" and you have a new clean database.