Update Failed and Plugin Failed to Function

For some time I’ve used this plugin. However, due to recent instability, I’ve decided to uninstall it. First, I got a notification that a new version was available (3.0.0). Multiple times I have attempted to update the plugin. Every time I kept getting an error of:

“Update Failed: Download failed. Not Found.”

So, I decided to download the latest version of the plugin and update it manually. After updating the plugin, I went to the Cloudflare settings. Previously, it was as simple as entering one’s Cloudflare account username/password. One could then set the option of development mode and so forth. Now, I see a button to “Apply Default Settings.” According to the description, this button will “Apply CloudFlare recommended settings to ensure optimal site performance.” The problem is this never happens. I clicked the button and a little spinning circle popped up where the button was at. I figured this meant that it was applying the settings. However, it’s been about ten minutes and it’s still applying said settings.

I’ve uninstalled the plugin as it’s apparent the plugin is no longer stable. It can’t update itself. Then it can’t even apply the settings. What’s the point of keeping a plugin that won’t update or even function?