Worldmap Panel gives "TypeError: Cannot read properties of undefined (reading 'length')"

Hi all, and thanks in advance for the support.

I am using Grafana 8.3.0 and the Worldmap Panel with Data source MySQL. The result as a table is like this:

country; total
DE; 7971
FR; 576
NL; 497
AT; 195

When i switch to to the worldmap view i am getting a Data error “TypeError: Cannot read properties of undefined (reading ‘length’)”

Can someone help me here? Unfortunately I don’t know what to do next.

Best regards

Worldmap panel is deprecated. Use geomap Geomap | Grafana Labs