WP Optimizer

• Overview: The plugin will help you get an overview of what is happening in your database. It will report all unused/orphaned items that should be cleaned.
• Auto optimize: You can specify what items should be cleaned/optimized/repaired, the process will run automatically based on your settings.
• Backup Manager: The plugin will help you handle your database backups.
• Benefits: If you have been using WordPress for a while, then you should think absolutely about a database cleanup. Indeed, your database may be full of garbage that makes your site sluggish and bloated such as old revisions, orphaned post meta, spam comments, etc. You should clean up this unnecessary data to reduce your database size and improve website speed and performance. In addition, you will have quicker database backup since the file of your backup will be smaller.

• Privacy: Any optimization will run on your server using php module like imagick or GD so that your stuff will remain yours.
• Smooth Handling With pixel-perfect optimization using progressive rendering, your images will be looks great.
• Auto optimize: You can set images optimization process run automatically on every file uploaded.
• Save space: By optimizing images you will save a lot of space in WordPress media library, and your site will load faster due to less heavy images.
• Benefits: Thanks to image optimization your website will load faster, and the WordPress installation will take up less space. Furthermore, the clean-up feature will handle non-used media and remove them, so you can have much space available.

Search engines like Google, measure and factor in the speed of websites in their ranking algorithm. When they recommend a site they want to make sure users find what they're looking for quickly. So in effect you and Google should have the same objective. Speed is among the most significant success factors websites face. In fact, your site's speed directly affects your income (revenue) — it's a fact. Speed it's a game changer in visibility, and some consequences of poor performance are:

• Lower perceived credibility and quality
• Increased user frustration
• Reduced conversion rates
• Increased exit rates
• Are perceived as less interesting or attractive

Deactivate the plugin and reactivate it, if this doesn't work try to uninstall and reinstall it. That should work! Otherwise, go to the new added module "Setting" and try a reset.