SSL wildcard certificate CONFIGURATION PROBLEMS

Hi

I acquired a new SSL certificate from 1and1 that is for my domain cbesprit.fr and all the subdomains.

The certificate is installed.

I installed Domain Mapping and did what is indicated in this post. https://premium.wpmudev.org/blog/ssl-domain-mapping/

It does not work .

Is there anything else I should do for it to work … ( .htaccess? wp-config.php?)

you have access if you wish

Thanks