i had my marvel page working fine some hours ago, but now i have a problem. The problem is that Overview page as well as Shard Allocation page cannot be loaded. In overview page i take empty diagramms and in shard allocation i get "Error The connection to Elasticsearch returned an error. Check your Elasticsearch instance."
The thing is that i can load cluster pulse Node and Index statistics pages and of course elasticsearch is working properly. What the problem may is?