SSL_ERROR_NO_CYPHER_OVERLAP

Hi there,

I installed Wp Super Cache on the website https://gites-de-leuziere.fr/, and after that, my site gave me this error : SSL_ERROR_NO_CYPHER_OVERLAP. Can’t reach wp-admin nor the actual website.

I wanted to uninstall the plugin Wp Super Cache and did what this website says :
http://www.tipsnfreeware.com/how-to-uninstall-wp-super-cache-wordpress-plugin/

I was hoping this would help…but my website is still offline.

Can someone help me please? I’m desperate…

Greetings, Madco

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