SSL Certificate not working with not authenticated issuer

[heyoh7860]

What is the name of the domain?

neptujnenetwork.de

What is the error number?

NONE - ERR_CERT_AUTHORITY_INVALID

What is the error message?

ERR_CERT_AUTHORITY_INVALID

What is the issue you’re encountering

SSL Certificate installed, SSL Certificate doesn’t work as expected.

What steps have you taken to resolve the issue?

Tried to change everything to be the same as on another, working domain of mine.

Was the site working with SSL prior to adding it to Cloudflare?

Yes

What is the current SSL/TLS setting?

Flexible

What are the steps to reproduce the issue?

change everything be to be able to usually use SSL and with a small change you’ll get the issue mentioned above.

Screenshot of the error

[heyoh7860]

Nevermind, just got it fixed.

[sandro]

You definitely need to change the encryption mode as you currently have encryption disabled. Make sure to change to Full Strict.