What Grafana version and what operating system are you using?
self-hosted v8.5.2 - Centos8 Stream
I use nginx with the cloudflare reverse proxy
What happened?
When I add a graph after I have added another 4-5 when I click on save I get this error and it does not save anything. Furthermore, the save key can no longer be pressed
Did you receive any errors in the Grafana UI or in related logs? If so, please tell us exactly what they were.
what browser are you using while viewing that error? Do you see anything under the network tab inside that browser’s developer console? Are you able to view your grafana server’s logs?