bug in pvp battle

[Michaelx]

i was battling with this guy: nick Maxing and in the last pokes we stay he have the move "sleep talk" on his pokemon we both was with the last poke.

i spend all my atacks and his goodra have "power whip,curse,rest,sleep talk" thats the moves he have. for some kind of bug he spam sleep talk and i dont lose pp when the move was used. but when i use roar when he have just 1 poke it say's "but it failed" and i lsot 1 pp per round. pls can check this? thats unfair and im sure its gonna happen more if nothing be done.

here is the prove https://prnt.sc/c3m3pq

Red server.

pvp ranking battle.