seems that your pool is incompatible with Nicehash based on their Pool Verifier...

have you hit an ETH block yet?

i have been thinking about giving Nicehash a try.  I have been mining on Nanopool for about a month, and recently upgraded my rig to 5 x RX470's totaling 140 HM/s...  I have been mining on your pool for about a day and I have 2000+ shares already.
Have you started with Nicehash yet?   If I was to point some mining power there, would it speed things up?
I dunno much about Nicehash, but I see that it is very flexible with their terms.  Buy however much power you want for however long you want, no contracts or whatever...

Has Nicehash worked for you in the past?  I'd like to give it a shot, and help out a smaller pool in the process