can not change values in advanced settings

Hi all!

I can't change some settings, eg. from:

Max length of title for media file...

to

Enable Ability to work with Buy Now button in Classifieds...

After changing and saving the values (eg. Max width of profile photo) have the old values.

What can I do?

Thanks

Tom

As an emergency solution, you can edit these values directly in the database...

You can replace the file admin/global_settings.php