Hallo how can i update Open Graph Object Debugger for sharing posts on facebook and other social sites (og - meta). Thanks.

I got this reply from

https://developers.facebook.com/tools/debug/og/object?q=http%3A%2F%2Fcloumak.cz%2Fdokumenty_on_line%2Fnacistick%25C3%25BD_t%25C3%25A1bor_smrti_velk%25C3%25BD_%25C3%25BAnik_2014_dokument_cz.html

Critical Errors That Must Be Fixed
Could Not Connect To Server Check that the webserver is running, and that there are no firewalls blocking Facebook's crawlers.
Warning
Errors That Must Be Fixed
Missing Required Property The 'og:type' property is required, but not present.
Notice
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.

i did it myself