Hey Jon,
Thanks for reaching out to us!
I apologize for any inconvenience you’ve experienced with using our plugins. For this one, it sounds you may have some additional code on your site (most likely within your current theme or possibly within another plugin) that is relying on the code from the Community Events plugin. Since the plugin is now deactivated, this code would be using functions that no longer exist and would cause fatal errors in PHP, causing the site to break.
Check your theme’s functions.php file or see if there is a “tribe-events” folder within your theme and try removing anything that could have been added as a customization to the Community Events plugin.
Let me know if this helps.
Thanks!