Resolved Let's encrypt SSL don't use by domain

[Erwan]

Hello,

We have a problem with a website.
We use SSL Let's encrypt without problem but this morning we see that there isn't certificate on the website.

We renew Lets'encrypt SSL, all is ok but the problem is still here.
We delete Lets'encrypt SSL and install it... always the problem. It's seem that website don't use the certificate but in "Hosting settings", "SSL support" is checked and the certificate is the good "Lets encrypt domain".

I don't understand.
An idea?

 

[Erwan]

RESOLVED.
I've made last Onyx updates. No mention of ssl but the problem is solved.