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via GitHub by ellisgl
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TypeError: Cannot call undefined
via GitHub by demipixel
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ReferenceError: "df" is not defined
jdk.nashorn.internal.runtime.ECMAException: TypeError: org.bukkit.event.player.PlayerMoveEvent@3755be94 is not an Object	at jdk.nashorn.internal.runtime.ECMAErrors.error(ECMAErrors.java:57)	at jdk.nashorn.internal.runtime.ECMAErrors.typeError(ECMAErrors.java:213)	at jdk.nashorn.internal.runtime.ECMAErrors.typeError(ECMAErrors.java:185)	at jdk.nashorn.internal.runtime.ECMAErrors.typeError(ECMAErrors.java:172)	at jdk.nashorn.internal.objects.NativeObject.notAnObject(NativeObject.java:136)	at jdk.nashorn.internal.objects.NativeObject.keys(NativeObject.java:439)