s', 'rocket' ), $this->plugin_last_version )
		. '</a></p>';

		echo '<div class="notice notice-error">' . wp_kses_post( $message ) . '</div>';
	}

	/**
	 * Do the rollback
	 *
	 * @since 3.0
	 * @author Remy Perona
	 */
	public function rollback() {
		check_ajax_referer( 'rocket_rollback' );

		if ( ! current_user_can( 'manage_options' ) ) {
			wp_die();
		}

		$consumer_key = isset( $this->options['consumer_key'] ) ? $this->options['consumer_key'] : false;

		if ( ! $consumer_key && defined( 'WP_ROCKET_KEY' ) ) {
			$consumer_key = WP_ROCKET_KEY;
		}

		$plugin_transient = get_site_transient( 'update_plugins' );
		$plugin_folder    = plugin_basename( dirname( $this->plugin_file ) );
		$plugin_file      = basename( $this->plugin_file );
		$url              = sprintf( 'https://wp-rocket.me/%s/wp-rocket_%s.zip', $consumer_key, $this->plugin_last_version );
		$temp_array       = [
			'slug'        => $plugin_folder,
			'new_version' => $this->plugin_last_version,
			'url'         => 'https://wp-rocket.me',
			'package'     => $url,
		];

		$temp_object = (object) $temp_array;
		$plugin_transient->response[ $plugin_folder . '/' . $plugin_file ] = $temp_object;
		set_site_transient( 'update_plugins', $plugin_transient );

		require_once ABSPATH . 'wp-admin/includes/class-wp-upgrader.php';
		// translators: %s is the plugin name.
		$title         = sprintf( __( '%s Update Rollback', 'rocket' ), $this->plugin_name );
		$plugin        = 'wp-rocket/wp-rocket.php';
		$nonce         = 'upgrade-plugin_' . $plugin;
		$url           = 'update.php?action=upgrade-plugin&plugin=' . rawurlencode( $plugin );
		$upgrader_skin = new Plugin_Upgrader_Skin( compact( 'title', 'nonce', 'url', 'plugin' ) );
		$upgrader      = new Plugin_Upgrader( $upgrader_skin );
		remove_filter( 'site_transient_update_plugins', 'rocket_check_update', 1 );
		$upgrader->upgrade( $plugin );
		wp_die(
			'',
			// translators: %s is the plugin name.
			sprintf( esc_html__( '%s Update Rollback', 'rocket' ), esc_html( $this->plugin_name ) ),
			[
				'response' => 200,
			]
		);
	}

	/**
	 * Filters the User Agent when doing a request to WP Rocket server
	 *
	 * @since 3.0
	 * @author Remy Perona
	 *
	 * @param array  $request   Array of arguments associated with the request.
	 * @param string $url       URL requested.
	 */
	public function add_own_ua( $request, $url ) {
		if ( strpos( $url, 'wp-rocket.me' ) === false ) {
			return $request;
		}

		$consumer_key = isset( $this->options['consumer_key'] ) ? $this->options['consumer_key'] : false;

		if ( ! $consumer_key && defined( 'WP_ROCKET_KEY' ) ) {
			$consumer_key = WP_ROCKET_KEY;
		}

		$consumer_email = isset( $this->options['consumer_email'] ) ? $this->options['consumer_email'] : false;

		if ( ! $consumer_email && defined( 'WP_ROCKET_EMAIL' ) ) {
			$consumer_email = WP_ROCKET_EMAIL;
		}

		$request['user-agent'] = sprintf( '%s;WP-Rocket|%s%s|%s|%s|%s|;', $request['user-agent'], $this->plugin_version, '', $consumer_key, $consumer_email, esc_url( home_url() ) );

		return $request;
	}
}
<br />
<b>Fatal error</b>:  Uncaught Error: Class 'WP_Rocket_Requirements_Check' not found in /home/payon/public_html/wp-content/plugins/wp-rocket/wp-rocket.php:112
Stack trace:
#0 /home/payon/public_html/wp-settings.php(453): include_once()
#1 /home/payon/public_html/wp-config.php(92): require_once('/home/payon/pub...')
#2 /home/payon/public_html/wp-load.php(50): require_once('/home/payon/pub...')
#3 /home/payon/public_html/wp-blog-header.php(13): require_once('/home/payon/pub...')
#4 /home/payon/public_html/index.php(17): require('/home/payon/pub...')
#5 {main}
  thrown in <b>/home/payon/public_html/wp-content/plugins/wp-rocket/wp-rocket.php</b> on line <b>112</b><br />