Yes, we are working very hard on fixing that. It worked fine in the test enviroment with 40+ miners. Apparantly the parser doesnt want to work when 500 miners are trying to check their stats.
We hope to have this solved as soon as possible as it is very unfortunate for both us as the miners.

-> Payouts are still delayed thanks to Cryptsy.

-> Backend is working fine, if you see accepted shares in your miner you WILL be paid.