Curl error: SSL certificate problem: certificate has expiredn

Hi,

Since this morning, I have a problem on my site. When I try to login to admin backend, I get the error: “Curl error: SSL certificate problem: certificate has expiredn”. And I can’t login.

On the frontend, things look normal. SSL looks fine and is valid until October 9th 2020. I use Cloudflare for SSL.

I googled for the error, but the threads seem to refer to plugins or themes I don’t have installed. Also I still don’t understand what the error means.

I did use Advanced Database Cleaner plugin yesterday to clean up some orphaned tables and options. Could I have messed something up then without noticing immediately?

Any ideas? Please?

The page I need help with: [log in to see the link]



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