Hi @dirk1973,
You need to go to the FM 24 editor (if you don't have the editor, you can install it from Steam) and afterwards Go to file > "Load Editor data" select the database.
After to "Rules" > "Test Rules" > "Verify All". The editor will test all the competitions. Once finished you can use the database in the game.
If you have question, ask the community.
Best Regards
Snohyy