Grafana server log in GrafanaCloud

Hi, while trying to get a first MySQL data source running, getting
“Query failed. Please inspect Grafana server log for details” in the data source configuration section.
Really can’t find said server log in GrafanaCloud. It’s not xyz.grafana.net/data/log or any other variation mentioned for other installs.
No idea what might be wrong with the MySQL source, so have hopes the log gives some clues.
Thanks!

i have no familiarity with the Grafana cloud service, but I wonder whether the
standard Query Inspector might help you work out what’s going amiss?

Antony.

the same problems, it was working since years, and suddenly from one day I got this error,