White screen upon activation

I also get a white screen, both on my admin page and for my website, across different devices. When I access my cPanel and delete the keyring plugin I get my admin page and website back. I have updated the latest versions of wordpress (as well as re-installing the latest version) and all plugins are up to date. I have the Tempera theme.

Do you have access to your server logs? It sounds like you’re getting a fatal PHP error. It might be coming from having an older version of PHP, or it could be something else — your error logs should tell you more.

I had the same problem and this helped fix it for me: https://www.ads-software.com/support/topic/fatal-error-cannot-redeclare-class-oauthexception#post-4641538