[Stinged]

I think the way you script is bugging them.
Can you try this?

pawn Код:

CMD:armour(playerid, params[])
{
    if (!IsPlayerAdmin(playerid))
        return 0;
        
    SetPlayerArmour(playerid, 100.0);
    SendClientMessage(playerid, -1, "You successfully used armour.");
    return 1;
}