The diag line explicitly says there are network (firewall or routing) issues:

errno: 111 (Connection refused), error: Connection refused (local port 50735 to address 0:0:0:0:0:0:0:0, remote port 80 to address http://www.daycomsolutions.com/Support/ ... 050w50.JPG

The server or workstation where PD4ML runs cannot access HTTP resources of Your network admin should check it and resolve it. If it is not possible by any security reason etc, you need to configure PD4ML to go via your company proxy.