I am getting the same message : -
Warning: Cannot modify header information - headers already sent by (output started at /home/hugowell/public_html/wp-admin/includes/template.php:1642) in /home/hugowell/public_html/wp-includes/pluggable.php on line 876
Clicked on Dash Board and it went OK, and can access the material, but is their an underlying issue?
Thanks