org.elasticsearch.xpack.monitoring.exporter.ExportException: failed to flush export bulks

Elastic Stack Elasticsearch
1

monitoring execution failed
org.elasticsearch.xpack.monitoring.exporter.ExportException: failed to flush export bulks
at org.elasticsearch.xpack.monitoring.exporter.ExportBulk$Compound.lambda$doFlush$0(ExportBulk.java:110) [x-pack-monitoring-8.0.0.jar:8.0.0] [x-pack-monitoring-8.0.0.jar:8.0.0]

can please some one help out

2

Welcome!

It's hard to help without any details about what you're doing and what you did so far.
Please help us to help you.

Also the message references a very old version of Elasticsearch. Why this?