[xMCx]

theres a little mistake here

pawn Код:

forward AddScore1(playerid);
public AddScore1(playerid)
{
    SetPlayerScore(playerid, GetPlayerScore(playerid)+1);
    new string[200];//here
    format(string, sizeof(string, "~g~U're now level 1 Congratz");//here
    GameTextForPlayer(playerid, string, 1000, 0);//here
    KillTimer(ScoreTimer1[playerid]);
    if(GetPlayerScore(playerid) < 2)
    {
               KillTimer(ScoreTimer1[playerid]);
    }
    return 1;
}

pawn Код:

format(string, sizeof(string, "~g~U're now level 1 Congratz");//your not using any value here like %i or %s so you
//you dont need to format it so you can simply add this?
GameTextForPlayer(playerid, "~g~your now level 1 Gratz", 1000, 0);//easily without adding string it would take more memory cause of its size

but its not a big problem it will work anyways, thanks nice tut!