“certificate has expired at pdf-ninja.php”

Hi Adam,

Can you please check your server date? It sounds like that might be the problem.

The certificate looks fine:
https://entrust.ssllabs.com/analyze.html?d=pdf.ninja&hideResults=on.

Normally, you don’t need to do anything with your key. It can be viewed or changed on your CF7 Integration page. The same key will work for both, version 1 and 2.

I would recommend talking to your hosting provider regarding this issue. It would be interesting to find out what they say.

Awesome. Thanks for the reco. I’ll give it a shot.

A.

This can be probably the issue:
https://www.openssl.org/blog/blog/2021/09/13/LetsEncryptRootCertExpire/

Solutions for server are listed in OpenSSL blog, however, it can be as short as one word – UPDATE (your system)

Also the following client system and software are affected:

Windows XP SP3
macOS below 10.12.1
iOS below 10
Android below 7.1.1
Mozilla Firefox below 50.0
Ubuntu xenial / 16.04 (lacked updates)
Debian jessie / 8 (lacked updates)
Java 8 below 8u141
Java 7 below 7u151
NSS below 3.26

@fierevere, thanks! Looks like that is the issue.
@epymetheus, please ask your hosting provider to update software on your server.

@maximumsoftware and @fierevere thanks to you both!

The error for my host is here: https://letsencrypt.status.io/

They’re currently engaged in updating it.

I’ve switched to ZeroSSL. It should work better for you.