Whatever setting I am trying to apply, as soon as I click [Save] all the changed values are reset to the default value or text fields where I have entered some data is empty again. Fo example:
- I go to Site Settings > Logo Settings
- I enter a Site Name and a Site Slogan and select an image for the logo
- There is a small preview for the logo and this looks fine
- I click the [Save] button
- The fields «Site Name» and «Site Slogan» are empty and the logo preview image has gone
- Nothing has changed in the Front-End.