Hey @kfrank – I think that my reply in this other thread might be helpful for you too:
Can you try the steps outlined in that fix, which basically mean:
- Make a backup of the existing file at
/etc/ssl/cert.pem - Download a new cert bundle from: curl - Extract CA Certs from Mozilla
- Move the
cacert.pemfile to overwrite thecert.pemfile. - Retry authenticating the Smart Slider 3 plugin.
Let me know how that goes, or if you have any other questions!