public function uninstall() {

		$title = $this->get( 'title' );

		if ( ! $this->is_installed() ) {
			// Translators: %s = Add-on title.
			return new WP_Error( 'not-installed', sprintf( __( '%s is not installed.', 'lifterlms' ), $title ) );
		}

		if ( $this->is_active() ) {
			// Translators: %s = Add-on title.
			return new WP_Error( 'uninstall-active', sprintf( __( '%s is active and cannot be uninstalled.', 'lifterlms' ), $title ) );
		}

		return $this->uninstall_real();

	}