Cannot access my wp-admin page

I need help deleting this fatal plugin! When accessing my admin page this error message shows up and I can’t do anything else!

Fatal error: Cannot redeclare tgmpa_load_bulk_installer() (previously declared in /home/content/p3pnexwpnas02_data01/83/2072983/html/wp-content/plugins/landing-pages/libraries/class-tgm-plugin-activation.php:2866) in /home/content/p3pnexwpnas02_data01/83/2072983/html/wp-content/themes/community-pro/includes/vendor/class-tgm-plugin-activation.php on line 2204