[SmiT]

Maybe because you have an extra bracket?

pawn Код:

if(strcmp(cmd,"/heal",true)==0)
    {
        if(PlayerInfo[playerid][pDonateRank] >= 4)
        {
        if(GetTickCount() - GetPVarInt(playerid, "heal") < 120000) return SendClientMessage(playerid, 0xFF0000FF, "you must wait 2 minutes");
                 SetPlayerHealth(playerid, 100);
                 SetPlayerArmour(playerid, 100);
                SendClientMessage(playerid,COLOR_GREEN,"You've set your health and armour to 100");
                    SetPVarInt(playerid, "heal", GetTickCount());
                
            }  /* <-------------------- */
        }
         return 1;
    }