Not even 5 threads down from habbo help and support is a thread called Proxy Setup, before you spam help and support you really need to look it up for yourself. We are not going to spoon feed you when I know for a fact there is a hundred threads out there about how to setup proxy with habbo retro..
anyways:
Login to your TCP Proxy portal
Configure your IP (Found in your client.php)
Configure Port - > 30,000 default (no comma)
Take the proxy IP and proxy port and put it only in your client.php