See forum post
http://forum.pmease.com/viewtopic.php?f=1&t=3061

The error reported is:

2014-03-03 11:50:42,456 ajp-bio-8009-exec-25 ERROR SHICKS 710x16367x1 1yd2psp 10.2.10.214 /browse/UCMS-19143 [com.atlassian.velocity.DefaultVelocityManager] MethodInvocationException occurred getting message body from Velocity: java.lang.NoClassDefFoundError: com/atlassian/jira/web/action/issue/ViewIssue
java.lang.NoClassDefFoundError: com/atlassian/jira/web/action/issue/ViewIssue
   at com.pmease.quickbuild.addons.jira.issuepanel.IssueChangesTabPanel.isSortingActionsInAscendingOrder(IssueChangesTabPanel.java:172)
   at com.pmease.quickbuild.addons.jira.issuepanel.IssueChangesTabPanel.getActions(IssueChangesTabPanel.java:120)
   at com.atlassian.jira.plugin.issuetabpanel.IssueTabPanel3Adaptor.getActions(IssueTabPanel3Adaptor.java:45)
   at com.atlassian.jira.plugin.issuetabpanel.IssueTabPanelInvokerImpl.invokeGetActions(IssueTabPanelInvokerImpl.java:81)
   at com.atlassian.jira.issue.tabpanels.AllTabPanel.getActions(AllTabPanel.java:38)
   at com.atlassian.jira.plugin.issuetabpanel.IssueTabPanel3Adaptor.getActions(IssueTabPanel3Adaptor.java:43)
   at com.atlassian.jira.plugin.issuetabpanel.IssueTabPanelInvokerImpl.invokeGetActions(IssueTabPanelInvokerImpl.java:81)
   at sun.reflect.GeneratedMethodAccessor1192.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   at java.lang.reflect.Method.invoke(Method.java:606)
   at com.atlassian.plugin.osgi.hostcomponents.impl.DefaultComponentRegistrar$ContextClassLoaderSettingInvocationHandler.invoke(DefaultComponentRegistrar.java:129)
   (snip)