[Torus]

dude one minute please see that u add new Text3D:afk[MAX_PLAYERS]; at top then what mistake you have done is

you have added new "Text3D:afk" in the command /afk. just remove the new

heres the code

pawn Code:

new Text3D: afk[MAX_PLAYERS]; // at your top of script

COMMAND:afk(playerid, params[])
{
     new string[128], playerName[MAX_PLAYER_NAME];
     GetPlayerName(playerid, playerName, MAX_PLAYER_NAME);
     format(string, sizeof(string), "SERVER:%s is now in afk mode!", playerName);
     SendClientMessageToAll(blue, string);
     Text3D:afk = Create3DTextLabel("Player is afk!", 0x008080FF, 30.0, 40.0, 50.0, 40.0, 0);
    Attach3DTextLabelToPlayer(afk, playerid, 0.0, 0.0, 0.7);
    TogglePlayerControllable(playerid, 0);
    return 1;
}
COMMAND:back(playerid, params[])
{
     new string[128], playerName[MAX_PLAYER_NAME];
     GetPlayerName(playerid, playerName, MAX_PLAYER_NAME);
     format(string, sizeof(string), "SERVER:%s has came back from being afk!", playerName);
     SendClientMessageToAll(blue, string);
     TogglePlayerControllable(playerid, 1);
     DeletePlayer3DTextLabel(playerid, Text3D:afk);
     return 1;
}

Hope It Helped