Cannot change screensaver & Current screensaver freezes

I downloaded the fliqlo screensaver and it worked alright for about three days, but today it is causing many issues.
My screen timeout is set to one minute, and it timed-out correctly and the screensaver came up. However, when I moved the mouse to get back to my regular computer screen, all that showed was a black screen in the sense of "black light". By "black light" I mean that the screen is not off completely, but rather the light color is black. If someone needs a picture of this I have no issue providing such.
So after restarting my computer because I could not get the regular screen up I went to try and change my screensaver in Control Panel>Appearance and Personalization>Personalization>Screen Saver. The separate menu to change my screen saver never launched, no matter how many times I clicked the button. The current control panel window would go out of focus as if it WAS going to pull up, but it did not.
Lastly, I tried to just relaunch the fliqlo setup file, to which it was no success and the .exe file froze and stopped responding.
Thank you for any help provided. Will provide screenshots/photos if needed.

If it was me I would uninstall it.
Others may offer better advice.