[Patrick]

Try this.

PS: dont put a stock inside a callback
and you can make new str[size]; instead of putting in stock BanWithMessage(playerid, str[])

pawn Код:

CMD:ban( playerid, params[ ] )
{
    if(PlayerInfo[playerid][pAdmin] == 0) return SendClientMessage( playerid, -1, "Tu ne administratorius!" );
    new
        id,
        reason[ 64 ]
    ;
    if(sscanf( params, "us[64]", id, reason ) ) return SendClientMessage( playerid, -1, "Naudojimas: /ban [Nickas] [Prieћastis]" );
    if( !IsPlayerConnected( id ) || id == INVALID_PLAYER_ID ) return SendClientMessage( playerid, -1, "Tokio ћaidejo nera." );
    if(PlayerInfo[id][pPadmin] == 1) return SendClientMessage(playerid, -1, "Ka cia darai?");
    new
        str[ 128 ],
        pName[ MAX_PLAYER_NAME ],
        aName[ MAX_PLAYER_NAME ]
    ;
    GetPlayerName( playerid, aName, MAX_PLAYER_NAME );
    GetPlayerName( id, pName, MAX_PLAYER_NAME );
    format( str, sizeof( str ), "%s Uћblokavo ћaideja %s. (Prieћastis: %s)", aName, pName, reason );
    SendClientMessageToAll( -1, str );
    SetTimerEx("BanPublic", 1000, 0, "d", playerid);
    return 1;
}

forward BanPublic(playerid);
public BanPublic(playerid)
{
    SendClientMessage(playerid, 0xFF4444FF, "Jus uћblokuotas! Uћblokavo neteisingai? Pildyk unban anketa fr.tt.lt");
    BanEx( playerid, "BanPublic" );
    return 1; //you can also use true = 1
}