First off, why would you use a flimsy site such as that to store your most precious asset? That was a little negligent of you dude. But let's save the reprimands for later.

I don't think there's a good way for you to even get your coins back, from the moment you generated that wallet you already relinquished any form of privacy that you may have over your crypto wallet. What's yours is theirs basically. Would've been really nice too if you asked the forum first before you actually dipped your toes into this ordeal. look into this article too though and see if this could enlighten you on how crypto scams work legally so you could discern if you could file a formal complaint or even sue them. Can You Recover Stolen Bitcoin From Crypto Scams?, but if I were you, I wouldn't get my hopes up. Let this be your first pricey lesson not to trust anyone on the internet with anything you own.