The content length (938946807) is bigger than the maximum allowed string (536870888) sending logstash-plain.log to elasticsearch

Elastic Stack Logstash
3

getting this after adding server.maxPayloadBytes

Nov 22 11:54:16 ip-10-0-9-223.ap-south-1.compute.internal kibana[7557]: [2022-11-22T11:54:16.940+00:00][WARN ][plugins.licensing] License information could not be obtained from Elasticsearch due to ConnectionError: connect ECONNREFUSED 10.0.9.223:9200 error
Nov 22 11:54:19 ip-10-0-9-223.ap-south-1.compute.internal kibana[7557]: [2022-11-22T11:54:19.017+00:00][ERROR][plugins.security.authentication] License is not available, authentication is not possible.
Nov 22 11:54:19 ip-10-0-9-223.ap-south-1.compute.internal kibana[7557]: [2022-11-22T11:54:19.022+00:00][WARN ][plugins.licensing] License information could not be obtained from Elasticsearch due to ConnectionError: connect ECONNREFUSED 10.0.9.223:9200 error
Nov 22 11:54:19 ip-10-0-9-223.ap-south-1.compute.internal kibana[7557]: [2022-11-22T11:54:19.196+00:00][ERROR][plugins.security.authentication] License is not available, authentication is not possible.
Nov 22 11:54:19 ip-10-0-9-223.ap-south-1.compute.internal kibana[7557]: [2022-11-22T11:54:19.203+00:00][WARN ][plugins.licensing] License information could not be obtained from Elasticsearch due to ConnectionError: connect ECONNREFUSED 10.0.9.223:9200 error
Nov 22 11:54:20 ip-10-0-9-223.ap-south-1.compute.internal kibana[7557]: [2022-11-22T11:54:20.861+00:00][WARN ][plugins.licensing] License information could not be obtained from Elasticsearch due to ConnectionError: connect ECONNREFUSED 10.0.9.223:9200 error
Nov 22 11:54:21 ip-10-0-9-223.ap-south-1.compute.internal kibana[7557]: [2022-11-22T11:54:21.476+00:00][ERROR][plugins.security.authentication] License is not available, authentication is not possible.
Nov 22 11:54:21 ip-10-0-9-223.ap-south-1.compute.internal kibana[7557]: [2022-11-22T11:54:21.481+00:00][WARN ][plugins.licensing] License information could not be obtained from Elasticsearch due to ConnectionError: connect ECONNREFUSED 10.0.9.223:9200 error
Nov 22 11:54:21 ip-10-0-9-223.ap-south-1.compute.internal kibana[7557]: [2022-11-22T11:54:21.668+00:00][ERROR][plugins.security.authentication] License is not available, authentication is not possible.
Nov 22 11:54:21 ip-10-0-9-223.ap-south-1.compute.internal kibana[7557]: [2022-11-22T11:54:21.676+00:00][WARN ][plugins.licensing] License information could not be obtained from Elasticsearch due to ConnectionError: connect ECONNREFUSED 10.0.9.223:9200 error