Magento2 extension shows blank page in my magento2 admin


I have installed magento2 extension for cloudflare cdn. But after installation if I open cloudflare from magenyo admin panel, it shows a blank page with CloudFlare heading. Any help is appreciated. I m using magento2.2.5 community edition



No responses?
Same issue on 2.2.5 except my blank page shown only on product page in frontstore.
Category and default page works fine. Any ideeas ?

Thank you.