Website redirects to Plesk login page

Hello, my website, rintojenterveys.fi is redirecting to Plesk login page instead of WordPress page.

This is due to an SSL error, which I am not sure what is.

Also, sometimes it shows WordPress on some devices, sometimes not. I don't know if it's caching.

I tried https://www.site-shot.com/ and it shows a screenshot of Plesk.

I just wanted to confirm something, I have an _acme-challenge.rintojenterveys.fi. TXT record added to both my domain registrar, which is the authoritative DNS for my domain, and also I have the same TXT record on my Plesk server, where my website is hosted. Could that cause an issue or could be the issue?

Duplicate of

so closed.