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If not, make sure that the folders are properly configured: change their permissions of the folders in red on your FTP server (CHMOD 777 755 or 775, depending on your hosting provider) then click the "Refresh these settings" button.
In order to perform a CHMOD, using your FTP client, find the folders that have the wrong permission settings, right-click on each of them in order to display their properties (or even better, their access rights), and tick the boxes that are not yet ticked, until a refresh of the "System and Permissions" page gives you only green folder.
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