wildrig.exe -a x21s -o stratum+tcp://x21s.mine.zergpool.com:3224 -u [WALLET] -p  c=PGN, mc=PGN   -ERROR!
My mistake.
Need without gaps.
wildrig.exe -a x21s -o stratum+tcp://x21s.mine.zergpool.com:3224 -u [WALLET] -p  c=PGN,mc=PGN  -Work fine.