Hello! The "Stats.Activity" worked very well till some days ago. Now I always get this error:
"Unexpected charting exception: nulljava.lang.NoClassDefFoundError at com.xpn.xwiki.plugin.charts.params.ColorChartParam$1.init(ColorChartParam.java:59) at com.xpn.xwiki.plugin.charts.params.ChoiceChartParam.(ChoiceChartParam.java:36) at com.xpn.xwiki.plugin.charts.params.ColorChartParam$1.(ColorChartParam.java:54) at com.xpn.xwiki.plugin.charts.params.ColorChartParam.init(ColorChartParam.java:54) at"
Hello! The "Stats.Activity" worked very well till some days ago. Now I always get this error:
and so on...
Do you know this error and how to solve it?
Many thanks in advance!
Dominique
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