What ? 

The following error message appears in your Woocommerce administration panel blocking the bpost labels generation

Why ? 

Up to now, all clients having this issue are all hosted by OVH. This would mean that OVH encounters an issue with the bpost SSL certificate. We 're currently investigate it to fix the issue. In the meanwhile, we propose you a workaround so you can continue using our bpost plugin.

How to fix it (workaround)?

In the file  wp-content/plugins/bpost-shipping/vendor/antidot-be/bpost-api-library/src/Bpost.php, at line 234, add the 2 following lines in order to hide the SSL errors:

$options[CURLOPT_SSL_VERIFYHOST] = false;
$options[CURLOPT_SSL_VERIFYPEER] = false;