스코어보드에서 다른 변수는 잘 나오는데 xp가 안나오네요...

xp는 브혼님 구문 써봤는데 에러는 안뜨는데 <none>으로 스코어보드에 나오네요.

뭐가 문제일까요...

        set score " &6레벨" in sidebar of loop-player to 1

        set score " &e- %{_totalexp.%loop-player%}%" in sidebar of loop-player to 0

every 1 seconds:

    loop all players:

        set {_levelb} to round level of loop-player

        set {_levela} to round level of loop-player + 1

        set {_expb.%loop-player%} to calcExperience( {_levelb} )

        set {_expa.%loop-player%} to calcExperience( {_levela} )

        set {_expmax.%loop-player%} to {_expa.%loop-player%} - {_expb.%loop-player%}

        set {_expper.%loop-player%} to level progress of loop-player

        set {_exp.%loop-player%} to round ( {_expmax.%loop-player%} * {_expper.%loop-player%} )

        set {_totalexp.%loop-player%} to {_expb.%loop-player%} + {_exp.%loop-player%}