elasticsearch – There is no data in Elastic APM using fleet

admin

I used the below link to Install and configure Elastic APM
www.elastic.co/guide/en/observability/8.7/ingest-traces.html

I have a linux ubuntu server, I Installed Elastic Search and Kibana and configured them, I can access kibana from outside of the server and there is no problem. but when I try to configure APM with fleet, there is no data in it.

Check APM server Status is successfull.
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Check Agent Status is Successfull:
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but there is not any data in APM:
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Also using Postman I cannot acceess to port 8200 to get status of the apm-server
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I need help with configuring APM on my server.
not: I use .net core ad apm agent.

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