Website gives an red alert after generating and activating a new ssl certificate

What is the name of the domain?

ristein.eu

What is the error number?

Website showing harmful even with https connection

What is the error message?

Dangerous website This website is at risk of attackers trying to trick you into installing software or revealing information such as passwords, your phone number, or credit card numbers. Chrome strongly recommends clicking the “Back to safe site” button.

What is the issue you’re encountering

The certificate is not used to secure my https connections

What steps have you taken to resolve the issue?

generate a new certificate after the waring that the old was was expired.
I inserted the certificate on the server and provided it to the cloudflared tunnel via --origincert path-to-cert.
The Tunnel is running and the website is accessible but still showing the harmful for https

What are the steps to reproduce the issue?

visit https://page.ristein.eu

Screenshot of the error

warning2.png