Its clear that you are tending to withdraw an amount which is higher with your current balance.Try to adjust it up deducting also that network fee.Just have a time to read up instructions for it to go through.
I tried to withdraw the minimum amount, but nothing positive came out of it. constantly gives the same error.
proff:
https://imgur.com/16qvhVyTry to set this up.
Total amount on your wallet = adjusted amount for withdawal + network fees required.
If this one doesnt work then they do have problems with their withdrawal system.