SQL AG Configuration with Microsoft SQL 2019 Standard Edition

Dear Team,

I currently have a configuration ongoing for Microsoft ALways AG group. We have configured the WSFC, created the AG group but we cannot seem to move forward from the configuration. We see the two errors below when configuring the listener and the readable secondary.

Please, note that the two servers are in different locations and belong to two different subnets. We used two seperate ips for the configuration of the cluster and two ips for the AG listener. We also not able to change the readable secondary to yes, as well.

Is there any way we can configure this on the current license just to test? Please, advise.