Hi there, I'm having some trouble with Minnowbooster.

I can't withdraw money from MinnowBooster :(

Even though I have pressed 'Withdraw', the screen reloads and I'm faced with the exact same available balance in my account. Below it is "Your withdrawal will be transferred to your Steem Account after the confirmation'.
What does that mean? There's no FAQ or help guide that talks about this problem that I can find. Please help me, thank you.