Probably the query-service is not up and running. The otel-collectors fetch config from the query-service to run things. Also, the otel-collectors should fallback to the initial config. I remember similar bug being fixed in 2-3 releases back. Can you check the version of signoz you are running ?
SigNoz is an open-source APM. It helps developers monitor their applications & troubleshoot problems, an open-source alternative to DataDog, NewRelic, etc.
