The Email Configuration page is displayed on successful installation. Once email setting details are setup and then when you click "Scheduled Report" it appear and goes then again Email Configuration page appears.

To resolve,

1. Check whether the Kibana index configured in Skedler reporting.yml is same as the Kibana index configured in kibana.yml.

2. Run the following command on the server where Skedler runs to check whether Kibana index configured in kibana.yml is available in Elasticsearch.

sudo curl -XGET <Elasticsearch URL>/<kibana_index>