[Matess]

Ehm..and where are you sending it? Format != SendClientMessage

pawn Код:

if(Masked[playerid] == 1) format(string, sizeof(string), "Stranger_%d spins the key and turns engine off.",maskid[playerid]);
            else format(string, sizeof(string), "%s spins the key and turns engine off.",sendername);
return SendClientMessage(playerid, -1, string);