On this page a unsubscribe link is described:
http://templates.dynamicweb-cms.com/TemplateTags/Dynamicweb-template-tags/Page-tags/Page/EmailMarketingEmail-UnsubscribeLink.aspx
<!--@EmailMarketing:Email.UnsubscribeLink.Clean-->
The tag is only rendered if sent to a mailclient.
If the receipient clicks Read online the tag is not rendered and clicking it results in a Server error in aplication error. How can this last error be avoided.