Problem z Systemem Leveli

on player join:
    if {lvl::%player%} is not set:
        set {lvl::%player%} to 0
    if {dolvl::%player%} is not set:
        set {dolvl::%player%} to 100
    if {xp::%player%} is not set:
        set {xp::%player%} to 0
on death:
    if attacker is a player:
        add 10 to {xp::%attacker%}
    if {xp::%attacker%} >= {dolvl::%attacker%}
		add 1 to {lvl::%attacker%}
		set {xp::%attacker%} to 0
		add 100 to {dolvl::%attacker%}
command /lvl:
    trigger:
        send "&8[&l&cMc&6Torch&8]&r&e Masz {lvl::%attacker%} level! Brakuje ci {dolvl::%attacker%} expa do następnego levela!" to player
        send "&8[&l&cMc&6Torch&8]&r&e Aktualnie masz {xp::%attacker%} expa!" to player

Pisze mi can't understand this condition/effect: if {xp::%attacker%} is bigger than {dolvl::%attacker%}

Chyba nie powinienem używać najnowszą wersje skript i skUlities na wersji 1.15.2

plus /lvl też nie dziala