Either that you didnt generate the puppetdoc (see <ahref=http://theforeman.org/projects/foreman/wiki/Puppet_class_browser>here</a>) or
The class <strong><%=name-%></strong> could not be found in environment <strong><%=environment-%></strong><br>
Please ensure that the class <strong><%=name-%></strong>'s declaration is accessible via the modulepath associated with <strong><%=environment-%></strong>.