One Grafana dashboard suddenly missing

Hi. New user using Grafana together with Teslamate. its been running fine in a DOcker on Ubuntu, untouched for 7 weeks now. Suddenly when I go in and click on a drive in the list, I get a Dashboard not found. I found the following in the log :

logger=context userId=1 orgId=1 uname=admin t=2024-03-05T18:48:34.026722478Z level=error msg=“Dashboard not found” error=“Dashboard not found” remote_addr= traceID=

logger=context userId=1 orgId=1 uname=admin t=2024-03-05T18:48:34.026849096Z level=info msg=“Request Completed” method=GET path=/api/dashboards/uid/zm7wN6Zgz status=404 remote_addr= time_ms=7 duration=7.206769ms size=46 referer=“” handler=/api/dashboards/uid/:uid

Any hep appreciated