Can not send request to AWS endpoint

I have a service which was tested on old platform (standalone server) and now I need to run same tests on AWS. I’ve modified url endpoint in request but I have error “Cannot send the test request”
at org.apache.http.impl.conn.SystemDefaultDnsResolver.resolve(
at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(
at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(
at org.apache.http.impl.execchain.MainClientExec.establishRoute(
at org.apache.http.impl.execchain.MainClientExec.execute(
at org.apache.http.impl.execchain.ProtocolExec.execute(
at org.apache.http.impl.execchain.RetryExec.execute(
at org.apache.http.impl.client.InternalHttpClient.doExecute(
at org.apache.http.impl.client.CloseableHttpClient.execute(
at com.kms.katalon.core.webservice.common.SoapClient.send(
at com.kms.katalon.controller.WebServiceController.sendRequest(
at org.eclipse.jface.operation.ModalContext$

Any idea?

Forget about Katalon Studio.

Just check if

is accessible using your Chrome/Firefox browser.

To me, this host seems not be there. That’s all. It is likely you failed to create the endpoint in AWS.

Endpoint in AWS is working fine, I’ve checked that in SoapUI.
What I see in the Katalon log url is not fully displayed what is in object request: