Fatal error: Uncaught Exception: This library must be installed via composer or by downloading the full package. See the instructions at https://github.com/google/google-api-php-client#installation.
A quick tip for those newer to WordPress — when you receive a fatal error not allowing you to log-in to your site and the message shows it to be a plug-in…
FTP into the site and rename the plug-in folder that is causing the fatal error. The path to the folder with the bad plug-in should be in the error message – in my case I renamed the folder with the offending plug-in to OLDgoogle-calendar-events.
This allowed the site to load again since the plug-in causing the fatal error couldn’t load due to the file name not being found. I then logged log in like normal and continued debugging things.
Later I did receive the email from WordPress with the recovery mode link, but didn’t need it since the technique I mentioned worked. Hope this helps others in the future.
