It seems that your datasource is not configured properly to point to the required database. In the Scheduler Admin Tool, navigate to the Data Sources tab. Click on the vdp data source, there in the connection URI, you can see which VDP database is configured. The format of connection URI is //<hostname>:<port>/<database_name>. For example the default is, //localhost:9999/admin. Make sure you have configured the correct database here. You can also add a new data source and configure it accordingly.
Refer to this document below for more details
Hope this helps!