As stated in https://www.elastic.co/guide/en/elasticsearch/reference/master/removal-of-types.html, when connecting to a elasticsearch version 7.x searching for .logtrail index, operation GET /.logtrail/config/1 is no longer suported. It should be used GET /.logtrail/_doc/1 instead. I have tested this fix connecting to a ElasticSearch 7.3.2 and it works.
As stated in https://www.elastic.co/guide/en/elasticsearch/reference/master/removal-of-types.html, when connecting to a elasticsearch version 7.x searching for .logtrail index, operation GET /.logtrail/config/1 is no longer suported. It should be used GET /.logtrail/_doc/1 instead. I have tested this fix connecting to a ElasticSearch 7.3.2 and it works.