[Sew_Sumi]

PHP код:

        case 9 .. 11: Gang[playerid] = aztecas; 
         if(GetPlayerScore(playerid) > 500) 
           { 
            case 12 .. 14: Gang[playerid] = cops; 
        } 


You can't do this... That's why it's erroring out.

https://sampwiki.blast.hk/wiki/Control_Structures#case

You should try using braces ( { } ) more.

PHP код:

case 12 .. 14:
{
    if(GetPlayerScore(playerid) > 500)
    {
        Gang[playerid] = cops;
    }
}