[IMail Forum] error in webmail

[Court Kizer]

Can someone please help me?   When my customer logs into his domain (webmail) and edits his list settings and hits the "set" button it gives this error:   <a href="/X5dab9b9f9a9d9f99ceb2a00774Error in tag execution   It does the same thing on all the browsers that i have tried. Also i have coldfusion installed on my server and it appears to have anded a list to his webmail that can't be deleted, however the list doesn't show up in the imail program. Is this something to be concerned about?