Snippet is not showing in the search results

Good day,
for some reason since the last change on the snippet, the snippet is not showing anymore in the search results. The title of the snippet is “Günstig Webseite erstellen lassen ab 399€ – Webdesign 2022”, but when searching for my website there is just “ohne Titel” which means “without title”. And instead of the Meta description there are shown two sitemaplinks i guess (you can see in the screenshots).

When I go into the Rank Math Plugin “Sitemap Options” the sitemap url for “pages” and for “homepage” are the exact two urls which are shown in the snippet description when searching for my website in the google browser.

https://imgur.com/a/8HA2TyV Imgur link for the screenshots.

How can we fix this?

I hope you can help

Greetings from Germany