Unable to start elasticsearch Version 2.3.4 on EC2

[JohanAgonda]

Hello Mr. Puch,
I have followed your youtube video for ELK stack installation on EC2. I am getting errors at Cloud AWS plugin installation stage and eleasticsearch START (log given below). Due to this I am unable to run the :9200 on my chrome browser. Please suggest a remedy. Thank you.

Exception in thread "main" java.lang.IllegalArg umentException: No automatic endpoint could be derived from region [ap-south-1]
at org.elasticsearch.cloud.aws.AwsEc2ServiceImpl.client(AwsEc2ServiceImp l.java:198)
at org.elasticsearch.discovery.ec2.AwsEc2UnicastHostsProvider.(Aws Ec2UnicastHostsProvider.java:75)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstruct orAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingC onstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at <<>>
at org.elasticsearch.node.Node.(Node.java:213)
at org.elasticsearch.node.Node.(Node.java:140)
at org.elasticsearch.node.NodeBuilder.build(NodeBuilder.java:143)
at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:178)
at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:270)
at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:35)