[Lordzy]

Well I'm sorry I think it's becoming because of a mistake in defines, I guess. Here's my chat stuffs of L-AFK.
As same as written on L-AFK:

pawn Код:

#define Disable_AFKCHAT == true //Change it from true to false if you don't want AFK users to be restricted in Chatting.

#if defined Disable_AFKCHAT == true
public OnPlayerText(playerid) 
{ 
    if(AFK[playerid] == 1)
    { 
     SendClientMessage(playerid, red, "You cannot chat while you are in AFK."); 
    }
    return 0; 
}
#endif

Please change the define to:

pawn Код:

#define Disable_AFKCHAT true

And also, make sure that the AFK variable is set to 0 on /back command.