OK. I have found the errors et correct it (the file to place on configuration file default-ssl).
No error message on errorlog when I restart Apache service…
But when I try ton reach my site using HTTPS, on my android phone with Google Chrome, this is what I see :
Your connexion is not private…
NET::ERR_CERT_COMMON_NAME_INVALID
In errorlog, I can see that :
[Wed Mar 15 21:51:21.487842 2017] [ssl:info] [pid 17841] (70014)End of file found: [client 80.215.227.83:30517] AH01991: SSL input filter read failed.
And I have this message when I do service apache 2 status :
The SSLCertificateChainFile directive is deprecated