[Mr.Z]

You will need something more.. When the player returns Text3D it should be deleted, and for that we will need ID, therefore it tries the following:

In the top

pawn Код:

new Text3D: Label_AFK[MAX_PLAYERS];

In OnPlayerConnect

pawn Код:

Label_AFK[playerid]=INVALID_3DTEXT_ID;

In OnPlayerDisconnect

pawn Код:

if(Label_AFK[playerid]!=INVALID_3DTEXT_ID) Delete3DTextLabel(Label_AFK[playerid]);

In Command /afk

pawn Код:

new Float:x,Float:y,Float:z;
GetPlayerPos(playerid,x,y,z);
Label_AFK[playerid]=Create3DTextLabel("afk", 0xFFFF00FF, x, y, z+1, 100, 0, 0),Attach3DTextLabelToPlayer(Label_AFK[playerid], playerid, 0, 0, 0, 0);

In Command /iamback

pawn Код:

Delete3DTextLabel(Label_AFK[playerid]);

I hope gives right