Blank Screen

Hey, new to WP, looking to make an Easy PayPal Events button, and when I go to make a new button (as per its instructions) the screen is blank. I figured it was clashing with an event calendar plugin, so I deactivated that plugin and made a new Event page to link to, but that didn’t help the blank screen. Any help is appreciated.

https://www.ads-software.com/plugins/easy-paypal-events-tickets/