public function notify() {
		if ( $this->requirements_met() ) {
			return;
		}

		echo '<div class="notice notice-error">';

		foreach ( $this->requirements as $requirement ) {
			if ( $requirement->is_met() ) {
				continue;
			}

			printf(
				'<p>%s deactivated: %s</p>',
				esc_html( $this->name ),
				esc_html( $requirement->get_message() )
			);
		}

		echo '</div>';
	}