Administration - Installation - Core: same problem

ilObjectException thrown with message "Permission Denied"

Stacktrace:
#6 ilObjectException in /var/www/html/ilias/Services/AccessControl/classes/class.ilObjRoleGUI.php:1821
#5 ilObjRoleGUI:ensureRoleAccessForContext in /var/www/html/ilias/Services/AccessControl/classes/class.ilObjRoleGUI.php:84
#4 ilObjRoleGUI:executeCommand in /var/www/html/ilias/Services/UICore/classes/class.ilCtrl.php:197
#3 ilCtrl:forwardCommand in /var/www/html/ilias/Services/Administration/classes/class.ilAdministrationGUI.php:284
#2 ilAdministrationGUI:executeCommand in /var/www/html/ilias/Services/UICore/classes/class.ilCtrl.php:197
#1 ilCtrl:forwardCommand in /var/www/html/ilias/Services/UICore/classes/class.ilCtrl.php:159
#0 ilCtrl:callBaseClass in /var/www/html/ilias/ilias.php:21


-- GET Data --

ref_id                   : 8
admin_mode               : settings
new_type                 : role
cmd                      : create
cmdClass                 : ilobjrolegui
cmdNode                  : 8v:i1
baseClass                : ilAdministrationGUI
lang                     : en
limit                    : 50