After supply credentials in kibana dashboard getting "internal server error". seeing bellow errors in logs.how to fix this.
plugin:elasticsearch","state":"red","message":"Status changed from red to red - Elasticsearch is still initializing the kibana index.","prevState":"red","prevMsg":"Request Timeout after 30000ms"}
:"plugin:elasticsearch","state":"red","message":"Status changed from red to red - Request Timeout after 30000ms","prevState":"red","prevMsg":"Elasticsearch is still initializing the kibana index."}
:"plugin:elasticsearch","state":"red","message":"Status changed from red to red - Elasticsearch is still initializing the kibana index.","prevState":"red","prevMsg":"Request Timeout after 30000ms"}
:"plugin:elasticsearch","state":"red","message":"Status changed from red to red - Request Timeout after 30000ms","prevState":"red","prevMsg":"Elasticsearch is still initializing the kibana index."}
:"plugin:elasticsearch","state":"red","message":"Status changed from red to red - Elasticsearch is still initializing the kibana index.","prevState":"red","prevMsg":"Request Timeout after 30000ms"}
:"plugin:elasticsearch","state":"red","message":"Status changed from red to red - Request Timeout after 30000ms","prevState":"red","prevMsg":"Elasticsearch is still initializing the kibana index."}
"plugin:elasticsearch","state":"green","message":"Status changed from red to green - Kibana index ready","prevState":"red","prevMsg":"Request Timeout after 30000ms"}
:"plugin:elasticsearch","state":"red","message":"Status changed from green to red - Request Timeout after 30000ms","prevState":"green","prevMsg":"Kibana index ready"}
"plugin:elasticsearch","state":"green","message":"Status changed from red to green - Kibana index ready","prevState":"red","prevMsg":"Request Timeout after 30000ms"}
:"plugin:elasticsearch","state":"red","message":"Status changed from green to red - Request Timeout after 30000ms","prevState":"green","prevMsg":"Kibana index ready"}
"plugin:elasticsearch","state":"green","message":"Status changed from red to green - Kibana index ready","prevState":"red","prevMsg":"Request Timeout after 30000ms"}
:"plugin:elasticsearch","state":"red","message":"Status changed from green to red - Service Unavailable","prevState":"green","prevMsg":"Kibana index ready"}