Thread:Support/You do not have permission to edit this page!

How can I edit the information in the namespace Mantis? Help me! Ref: http://translatewiki.net/w/i.php?title=Mantis:S_actiongroup_menu_add_note/vi&action=edit&loadgroup=out-mantis-0-all&loadtask=suggestions "You do not have permission to edit this page, for the following reason: You do not have permission to edit pages in the Mantis namespace."