Simply not working and no idea why

Hello,

I have installed the plugin and chose:

CDN Friendly, because I’m using KeyCDN
Convert Both (Jpeg and PNG)
Convertion method: Gd extention ( marked operational )

I have Saved settings and pressed “Convert test image (show debug)” which linked to an image. I have also Inspected the page on Chrmoe but no image displays as WebP. Any idea how to make this work ?

Also, I already have all images converted to WebP and stored on KeyCDN, all I need is to serve them

Thank you!