Error update page: value cannot be null (value set: null) TAAL [BLAME_file]

I'm in a bit of trouble. It seems like Facebook cannot reach my site. Therefore, I get this error message in the Facebook comment block, and also can not do anything on my site.

First I got this error:

Critical errors that need to be fixed
Error Error Page: Bad Reaction Code

Now I get this error:

Error Update Page:
Value cannot be null (value set: null) TAAL [BLAME_file]

None of my links work, testing:

Scraper URL: See what our scraper sees for your URL, shows me

"Document did not return data"

edit I created a new .html page with Facebook comment code. I have the same error.

edit 2 I cleared my .htaccess, still the same error.

edit 3 I have a different domain in web hosting, Facebook cannot connect to this site that I just noticed. My control panel is Parallelsยฎ H-Sphere. Is there anything I can check there? I will contact my web host.

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I can see your page, and it looks like Facebook can put it on:

http://developers.facebook.com/tools/debug/og/object?q=http%3A%2F%2Fiseeahappyface.com%2Fhaving-a-rough-day-at-work

However, you still have a few warnings to fix.

**Like Button Warnings That Should Be Fixed** Inferred Property: fb:admins and fb:app_id missing. fb:admins or fb:app_id is necessary for Facebook to render a News Feed story that generates a high clickthrough rate. Inferred Property: og:title missing. og:title meta tag is necessary for Facebook to render a News Feed story that generates a high clickthrough rate. Inferred Property: og:type missing. og:type meta tag is necessary for Facebook to render a News Feed story that generates a high clickthrough rate. **Open Graph Warnings That Should Be Fixed** Inferred Property: The og:url property should be explicitly provided, even if a value can be inferred from other tags. Inferred Property: The og:title property should be explicitly provided, even if a value can be inferred from other tags. Inferred Property: The og:locale property should be explicitly provided, even if a value can be inferred from other tags. 
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Source: https://habr.com/ru/post/901731/


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