[WP Smush Pro] WP Smush Pro Fatal PHP error

I noticed Beaver Builder wasn't working right. I asked tech support for Beaver Builder and they said that WP Smush Pro is causing a fatal error – I have deactivated the plugin

Fatal error: Uncaught Error: Call to undefined function get_current_screen() in /home/wptechguru/public_html/DAKINDAIRYFARMS/wp-content/plugins/wp-smush-pro/lib/class-wp-smush-admin.php:341