My site has an "unsafe domain"?

Hello guys,
I can’t create a SSL for my website. firefox is warning me, because it would be a dangerous website. But it’s MY website, there is nothing that could be dangerous. For two other websites at my webspace-account I had a SSL since one year and there is no problem.
What can I do? The edge browser stop the warning since I switched to http (without s). I don’t know… Here is the error report from webgo.de :

Fehler: Let’s Encrypt Validierung gescheitert, bitte Support kontaktieren!

An unexpected error occurred:
The client lacks sufficient authorization :: Error creating new authz :: “erik-x.de” was considered an unsafe domain by a third-party API
Please see the logfiles in /var/log/letsencrypt for more details.
Fehler: Let’s Encrypt Validierung gescheitert, bitte Support kontaktieren!

Hi @dawildcatcha,

Let’s Encrypt uses Google Safe Browsing tool to evaluate the domains and this tool is marking your site as unsafe:

https://transparencyreport.google.com/safe-browsing/search?url=erik-x.de

So you should review your site to know the reason Google Safe Browsing thinks your site is harmful.

Good luck,
sahsanu