Renew Let's Encrypt Certificate Problem

Hello,
Today I tried to renew my Let’s Encrypt certificate. I am using a dedyn.io subdomain. I started the command “certbot renew” in the directory where hook.sh is located.
Then i got the following error messages:

  • The following errors were reported by the server:
    Domain: XXXXXX.dedyn.io
    Type: unauthorized
    Detail: Incorrect TXT record
    “XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX” found at
    _acme-challenge.XXXXXX.dedyn.io

Why Let’s Encrypt will not accept the correct TXT record?

Best regards
Jens

Problem solved by myself.