AppleByte has only one official pool: pool.applebyte.me
Two other individuals have started their own pools, but we can not vouch for them, as we do not know the individuals, and by the posts here, their pools seem to have problems.
There are no problems, simply switching the front end to MPOS (same as the "official" pool) as the previous frontend was too simplistic.
The stratum server port is shutdown until the last found block is paid, then the MPOS frontend will be switched on.
Cheers
Art