Problem z boyfarmerem

on place of ender portal frame:
    if player's tool is ender portal frame named "&5&l&oBOYFARMER":
        if y-location of event-location is larger than or equal to 70:
            cancel event
            send "&awiadomosc"
        if y-location of event-location is larger than 69:
            loop blocks under event-block:
                if loop-block is bedrock:
                    stop
                set loop-block to obsidian

Niestety gdy położe go niżej 69 kratki

nie generuje on obsydianu