[TheToretto]

Try this one, I updated it using streamer plugin, tested in-game and it's working.

pawn Code:

#include <a_samp> 
#include <zcmd>
#include <streamer>

new Text3D:PlayerAdminLabel[MAX_PLAYERS];

ReturnAdminLevel(playerid)  
{  
    new  
        string[64]  
    ;  
    switch (pInfo[playerid][Admin])  
    {  
        case 1: string= "Moderator";  
        case 2: string= "Game Administrator";  
        case 3: string= "Lead Administrator";  
        case 4: string= "Server Manager";  
        default: string= "Undefined";  
    }  
    return string;  
}   

CMD:aduty(playerid, params[]) 
{ 
    //pInfo[playerid][Admin]++; Just for tests, you can delete it
    if(IsValidDynamic3DTextLabel(PlayerAdminLabel[playerid])) 
        DestroyDynamic3DTextLabel(PlayerAdminLabel[playerid]);
    PlayerAdminLabel[playerid] = CreateDynamic3DTextLabel(ReturnAdminLevel(playerid), 0xFFA500FF, 0.0, 0.0, 0.1, 5.0, .attachedplayer = playerid, .testlos = 1); 
    return 1; 
}