Repair WordPress settings update with Optimize plugin
Sometimes WordPress may refuse to get updates for your plugins or even the core system. Besides that it may also refuse to update even the settings of one or more of your plugins, or update some of their settings while leaving the rest of them empty!
All of these update problems may be caused by so called “transient options” that remain and create conflicts. Transient options are built in the WordPress cache system to speed the site, storing data for a while.
If you don’t know how to clean these options manually, here is a safe and free WordPress plugin you can download right now and let it remove these options for you, and not only that; the plugin will also delete post revisions, optimize your database, and more.
You can check what options you need. To solve the problem above you may like to check only the transient cleaning option and database optimization.