OK!
Thanks for this… I will contact the server support…
… more information:
even editing setting.xml does not take effect in the backend!
for example: /wp-content/plugins/flagallery-skins/photo_pro_jn/settings/settings.xml
looks like there is a problem with paths of the setting files?
thanks for your support and best regards
David
Hi there…
Same problem with my system!
PHP 5.6
child-theme of: uDesign
wp-content/plugins/flagallery-skins is 777
no .htaccess file in wp-content and subfolders
uninstalled all not used plugins
still not possible to save any changes on skins…
thanks for your help
David