Woow, Etherdelta, one of the oldest decentralized exchange in this space. It really played a vital part towards to the growth of this space, but however owing to issues it keeps failing to meet up with expectations; it is these issues that lead to the creation of forkdelta and ever since then has taken over from Etherdelta to be one of the best decentralized exchanges where ERC tokens are traded. Now talking about the issues you are facing, although it's been long I accessed the website but I think the exchange is no longer what it used to be and as such suggest you try forkdelta instead.