It's not a Strayacoin issue, as far as I can tell.

If you are still here, I would say the mining pool didn't update their stratum server to accept scrypt-nah, perhaps? Strayacoin changed their PoW algorithm to get rid of ASICs.  I'm sure if you give the official wallet a go and try mining there or at my own pool (you need the modified scrypt-nah binary) you can get some coins.

Pool:   https://pool.larahelpers.com
Miner: https://github.com/catcoin-project/cpuminer-opt-scryptnah