there was another person reporting that problem in the trollbox. I mailed ED, but I guess he won't be awake/online for another few hours

you can always send him a mail too,
everydice@gmail.com.
hope it gets figured out fast!
Sorry for the inconvenience entri3 and thanks for helping me answering the question Shitaifan

There was minor issue in our deposit/withdrawal server that prevents it from starting. Everything is fixed and running as usual by now. All deposits also had been processed and added to the corresponding balance

Thank you so much, this site has the best customer support.