Error loading theme in editor

I get this error message when loading theme

my own gess was write acces on maps but didn't work

warning: mkdir(): SAFE MODE Restriction in effect. The script whose uid/gid is 4267/4267 is not allowed to access /mounted-storage/home6/sub002/sc13301-CUDY/www/drupal/files/theme_editor owned by uid/gid 99/99 in /mounted-storage/home6/sub002/sc13301-CUDY/www/drupal/modules/theme_editor.module on line 516.

warning: copy(): SAFE MODE Restriction in effect. The script whose uid/gid is 4267/4267 is not allowed to access /mounted-storage/home6/sub002/sc13301-CUDY/www/drupal/files/theme_editor owned by uid/gid 99/99 in /mounted-storage/home6/sub002/sc13301-CUDY/www/drupal/includes/file.inc on line 288.

i hope someone can explane ?