Failed to start watcher. please wait for the cluster to become ready or try to start Watcher manully

Running cat API means this (http://localhost:9200/_cat/indices?v ) right ? After running this I got the the health status of every index as yellow .

A small snapshot of that is here.

Is this correct or shall i delete all the indices and start fresh ..

Also please share the link to previous blog post where you have mentioned about this all. I couldnt find it.

Please let me know .

Thanks.