Backend Error Google?

Hello, could you help me with my problem? I can’t work on my blog because of that. Some things checked but none of them can work. It’s related to https://kiwiphile.org - the Wordpress blog in 5.1.1 version + Newspaper 9.7, everything with DNS Cloudflare. I’ve got the problem with Google PageSpeed Insights. I... show more Hello, could you help me with my problem? I can’t work on my blog because of that. Some things checked but none of them can work.

It’s related to https://kiwiphile.org - the Wordpress blog in 5.1.1 version + Newspaper 9.7, everything with DNS Cloudflare.

I’ve got the problem with Google PageSpeed Insights. I can see ‘Backend Error’ checking the site.

Can I fix it somehow? I can’t hide that’s annoying because I haven’t any idea what is wrong.

Where can I find something about this? Thank you