503 error with WordPress 4.6

Hi

Great plugin, thanks – but since updating to WordPress 4.6, it is now crashing my site with a 503 error.

Changing wp_config.php with:

define(‘WP_DEBUG’, true);

doesn’t display an error message.

Polylang is v 2.0.3.

Please advise.

Thanks!

https://wordpress.org/plugins/polylang/