[MP2]

Replace

pawn Код:

if(levels == 0)

with

pawn Код:

if(levels < PlayerData[ID][AdminLevel]) // Their new level is LESS THAN their CURRENT level (= demoted)

I'd also add this toward the top:

pawn Код:

if(PlayerData[ID][AdminLevel] == levels) return SendClientMessage(playerid, RED, "ERROR: Player is already that level.");