526 error - web not working

[habrfil]

What is the name of the domain?

muz20.cz

What is the error number?

526, 525

What is the error message?

Connection timed out, Invalid SSL certificate

What is the issue you’re encountering

This morning our website stopped working giving us the error messages.

What steps have you taken to resolve the issue?

I contacted the web hosting that told me the issue is with the Cloudflare.

What feature, service or problem is this related to?

I don’t know

What are the steps to reproduce the issue?

Just go to muz20.cz.

[sjr]

Error 526 means the SSL certificate on your origin is invalid, likely it expired this morning from your description so you need to renew it.

You can set the DNS record to “DNS only” in the Cloudflare DNS which will show you. Once fixed you can set the DNS record back to “Proxied”.