SmartCrawl doesn't display my metadata

Hello, on the new website project I shared above, I use SamrtCrawl. I added Metadata to the homepage, but when I share, Facebook does not show my custom description metadata ect… but only standard scraping information like title.

I also posted the URL in the facebook debugger several times. Nothing changed. Instead I get this error messaged:

Could you help me find a solution please?