Hi,
I've just made a quick test :
https://search.google.com/test/rich-results/result?id=I939uywnoJ1kP8pk0qLdzA
Crawled successfully on Jun 29, 2022, 2:02:09 PM
Make sure you remove all Lorem ipsum content from the page, as Google ads won't allow you have such site used.
Something which also creates confusion is that :
http://webcache.googleusercontent.com/search?q=cache%3Ahttps%3A%2F%2Fwypsikaj.pl&oq=cache%3Ahttps%3A%2F%2Fwypsikaj.pl&aqs=chrome..69i57j69i58.1256j0j4&sourceid=chrome&ie=UTF-8
This is totally different from the original site seen now(the new one holds the Prestashop core theme.
The 503 error usually appears when somebody is playin with GEOIPlocalization and google bot is blocked as well.
I hope it helps,
cheers,
Leo