[Melissa]

anyone ever had this suddenly show?

I checked the folders and certs in /etc/letsencrypt/ and also the logs, no errors or anything but suddenly my website will not load and Cloudflare had this error on on pages

[Patricia]

Invalid SSL certificate Error code 526

[Nicholas]

no solution….

https://community.cloudflare.com/t/error-526-invalid-ssl-certificate-letsencrypt/487384

https://community.cloudflare.com/t/invalid-ssl-certificate-error-code-526/471136

[Shirley]

Brand new ss installation or how many days/weeks/months was it online???

[Charlotte]

> how many days/weeks/months was it online

maybe 4 months ago installed on Ubuntu 22.04…

[George]

The common solution for 99% of these cases is do not use Full SSL (Strict) in Cloudflare and change it back to just Full SSL.

I have seen this happen on multiple sites. I don’t know why exactly. But this always fixes it, not sure if Certbot problem or what because the certs do exist in the proper location that is specified in the Nginx server blocks….

[Jordan]

Better thread:

https://community.cloudflare.com/t/ssl-error-526-out-of-a-sudden-lets-encrypt-cert-still-valid-for-59-days-and-no-changes/433395

[Jack]

yeh not sure Full Strict is a good idea for most peeps

[Author]

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