[Konstantinos]

No need of sscanf, you don't want parameters. We want to make sure it's null to prevent it.

Try:

1st:

pawn Код:

CMD:gang(playerid,cmdtext[])
{
    if(isnull(cmdtext)) ShowPlayerDialog(playerid,37,2,"Gang","Create Gang\nDelete Gang\nInvite User\nRemove User\nGang Spawn\nGang Color\nJoin the gang\nGet away from gang\nGang Info\nGangs Info",">>","X");
    return 1;
}

2nd:

pawn Код:

CMD:gang(playerid,cmdtext[])
{
    #pragma unused cmdtext
    ShowPlayerDialog(playerid,37,2,"Gang","Create Gang\nDelete Gang\nInvite User\nRemove User\nGang Spawn\nGang Color\nJoin the gang\nGet away from gang\nGang Info\nGangs Info",">>","X");
    return 1;
}

If it still crashes, you'll have modify the zcmd to replace the % character.