Update Causing Error on Site

I updated the plugin and am now seeing an error message repeatedly on the top of my site reading: Warning: public_html/wp-content/plugins/wp-custom-widget-area/admin/class-wp-custom-widget-area-admin.php on line 332

I’ve tried deactivating and activating again…deleting and reinstalling. When it’s not activated, my footer isn’t visible, so am looking for solutions ASAP. Thanks for the help.