Errors appeared after updating wordpress to version 5.3.3

Same error for me as well. Please fix this.

Notice: class-oembed.php is deprecated since version 5.3.0! Use wp-includes/class-wp-oembed.php instead

• This reply was modified 4 years, 11 months ago by Libin.

They will probably not fix it, would be amazing if someone finds a way how to stop this error. The plugin is still working and it is the only one which I found working.

Change this line:
web/app/plugins/featured-video-plus/php/class-oembed.php:19

From:
require_once( ABSPATH . '/' . WPINC . '/class-oembed.php' );

To:
require_once( ABSPATH . '/' . WPINC . '/class-wp-oembed.php' );