Question. I noticed this in the snippet you provided
#0 [internal function]: XenForo_Application::handlePhpError(2, 'mkdir(): Permis...', '/home/globalha/...', 68, Array)
#1 /home/globalha/public_html/forums/library/XenForo/Helper/File.php(68): mkdir('/home/forumedi/...')
Are you setting a separate directory for your /data /internal_data other than default.
Just wondering why /home/forumedi is in there.