Fix simple bug(Urgent project)

Hi, I am trying to automate a task on kleinanzeigen.de and I keep getting detected when using selenium and get those slider captchas, and I don't know how to solve that problem? I am already using 2captcha but that doesn't seem to work here.

So I have 2 separate but related questions:

How do I set the browser up to not get detected and blocked? I am not even talking about proxies, because the issue appears right away at the first instance before I can even do anything else. I get flagged and then blocked, even after passing the captcha by hand.

Which brings me to my second question:

How do I solve sliding puzzles? Can 2captcha even do that?