EHCP will crash when I enabled ssl on apache2

[akong]

Hello,
When I enabled ssl on apache2.My http webpage will show ehcp default page.And it's can't connect EHCP admin panel.
https webpage can't see too.What is this problem?
I have screenshot some pic.
1.This is normal and no switch to ssl.
https://dl.dropboxusercontent.com/u/1058056/http_normal.png
2.Ready to switch ssl.
https://dl.dropboxusercontent.com/u/1058056/switch_ssl.png
3.Switch ssl finish
https://dl.dropboxusercontent.com/u/1058056/switch_finish.png
4.http webpage will show default page
https://dl.dropboxusercontent.com/u/1058056/http_to_default.png
5.https webpage can't see
https://dl.dropboxusercontent.com/u/1058056/https_failed.png
6.EHCP admin panel can't connect
https://dl.dropboxusercontent.com/u/1058056/can_not_connect_ehcp.png
Please check it.Thanks a lot.