The certificates for kosmetikstudio-pamelafaulhaber.de look OK ( and still valid until 19th Feb )
Can you give details of the domain and specific error message when you are getting the “too many certificates” error ?
I suspect you are hitting the limit -
The main limit is Certificates per Registered Domain, (20 per week). A registered domain is, generally speaking, the part of the domain you purchased from your domain name registrar. For instance, in the name www.example.com, the registered domain is example.com. In new.blog.example.co.uk, the registered domain is example.co.uk. We use the Public Suffix List to calculate the registered domain.
but I can’t see which domain this is related to from the information you provide.