Error rendering the Test Set Tests section on the Test Set view issue page

Error rendering 'com.xpandit.plugins.xray:view-issue-testset-tests-section'. Please contact your JIRA administrators.

2015-10-02 16:48:53,198 http-bio-8080-exec-356 ERROR abunk 1008x1426218x9 18201mv 50.185.66.185,127.0.0.1 /browse/SQT-846 [jira.web.component.ModuleWebComponentImpl] An exception occured while rendering the web panel: com.xpandit.plugins.xray:view-issue-testset-tests-section ()
java.lang.NullPointerException
at com.xpandit.raven.issue.view.testset.a.a(Unknown Source)
at com.xpandit.raven.issue.view.testset.a.apply(Unknown Source)
at com.google.common.collect.Iterators$8.next(Iterators.java:812)
at com.google.common.collect.Lists.newArrayList(Lists.java:139)
at com.google.common.collect.Lists.newArrayList(Lists.java:119)
at com.xpandit.raven.issue.view.testset.TestSetTestsContextProvider.getContextMap(Unknown Source)
at com.atlassian.jira.plugin.webfragment.contextproviders.AbstractJiraContextProvider.getContextMap(AbstractJiraContextProvider.java:32)
at com.atlassian.plugin.web.descriptors.DefaultWebPanelModuleDescriptor$ContextAwareWebP...