This issue arises when you try to update to the latest version of WordPress (3.1 and later). After updating WordPress, theme options would no longer be saved, even after clicking on “Save” button. Below is the solution:

This is a Fix for FashionPro, Newswire, ClearType, Gadget, Portal, Bigfoot, NewsTube and Freshlife theme:

Open /wp-content/themes/YOURTHEME/includes/theme-options.php and find this:

$settings = 'mods_'.get_current_theme();

And change it to:

$settings = 'theme_mods_'.get_current_theme();

And if you are using Weekly, Cube Light, Division, Garden, Daily, ChannelPro themes then here is the solution:

Open /wp-content/themes/YOURTHEME/functions/theme-options.php and find this:

$modsname = 'mods_'.$theme;

And change it to:

$modsname = 'theme_mods_'.$theme;

And lastly, don’t forget to WordPress Dashboard > Appearance > Theme Options and click on “Save Changes“.