Database error when upgrading to 9.0.0

FYI, every site that I update from 8.1.8 to 9.0.0 triggers the following error in my PHP log:

WordPress database error Duplicate column name 'location_meta' for query ALTER TABLE wp_itsec_geolocation_cache ADD COLUMN location_meta text NOT NULL made by require_once('wp-load.php'), require_once('wp-config.php'), require_once('wp-settings.php'), do_action('plugins_loaded'), WP_Hook->do_action, WP_Hook->apply_filters, ITSEC_Core->handle_upgrade, ITSEC_Setup::handle_upgrade, ITSEC_Setup::setup_plugin_data, ITSEC_Lib::create_database_tables, ITSEC_Schema::create_database_tables, ITSEC_Lib::db_delta_with_error_handling, dbDelta

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