Elastic Cloud APM Server - Queue is full

I have many Java microservices running in a Kubernetes Cluster. All of them are APM agents sending data to an APM server in our Elastic Cloud Cluster.

Everything was working fine but suddenly every microservice received the error below showed in the logs.

I tried to restart the cluster, increase the hardware power and I tried to follow the hints but with no success.

Obs: The disk is almost empty and the memory usage is ok.

Everthing is in 7.5.2 version

Hi @Edgar_Peixoto,
it is hard to figure out what could be going on here without further information. Could you create an issue in the Help section in cloud please?

I deleted all the indexes related to APM and everything worked after some minutes.