Categories link to home page

I could solve the problem, but i cannot delete the question. Sorry

Hello, I have the problem that when clicking on the categories in the blog is suddenly always linked to the home page. I am still on wordpress 5.6 and updated the theme (Airi) this morning. However, I do not know if the problem has existed for some time. I just noticed it for the first time (it can’t be long yet).
URL is https://schatz-suchen.online
Does anyone have an idea what this could be and how I can fix it? I would be very grateful for any help.

Best Mandy

Hi Mandi,

Thank you for contacting us. I am happy to help with your queries.

I can’t find the links needing help with. Because there are many links on your homepage and your website is not written in English.

Can you point me with a screenshot and some annorations on it, so I can quickly get the trouble, find out the solution to suggest?

Regards,
Kharis
aThemes Support