[Pinguinn]

No offence, but its poorly coded (even if you are a beginner at scripting)

pawn Код:

if(strcmp("/afk", cmdtext, true, 10) == 0)

/afk is 4 characters long, not 10.

pawn Код:

if(strcmp("/back", cmdtext, true, 10) == 0)

/back is 5 characters long, not 10.

pawn Код:

SetPlayerHealth(playerid, 100);

What if the player has 10 hp? He uses /back and his health is restored to 100

This type of afk system is released like... 100 times...
Please, at least make it a better AFK system: checking virtual world, checking interior, did the player actually move (GetPlayerPos)?