Sorry you feel that way, could you let me know which caching system you have installed and I can check what might be wrong.
For the notification on not being able to delete the plugin, it’s usually caused when you’re on a multi-site installation or have a caching plugin active.
You’ll need to deactivate your caching plugin temporarily or delete your cache before deleting this plugin. Or, if on multisite, you’ll need to deactivate this plugin on the main site before trying to delete.
Hi, it was a light cache or something, with a cheetah in a thumbnail. It didn’t work with my site.