Hi @anasustic ,
If your AEM is managed by AMS then , adobe team will create a new replication agent with ALB url but not with actual publish URL. If you are unable to find the replication agent which is configured with ALB url then get the ALB url and just replace host and port in the transport URI ad test connection and trigger replication again.
Since you already triggered replication right, you can find the default replication agent in var/eventing crx path and you can delete the date nodes or go to /system/console/slingevent and find which replication agent is scheduled and waiting.
After deleting the alredy scheduled replication items in the sling job, find or configure the the replication agent with ALB url and you can trigger the replication again.