We tested our theme with the “Really Simple SSL” plugin and I can confirm that everything works normally. What exactly error do you get? Can you give me some screenshot of the error you get?
Can you send me a screenshot of the debug information?
To do that, please follow the steps below:
1) Install and activate a “Really Simple SSL” plugin
2) Try to switch to SSL
3) Go to:Dashboard->Settings->SSL,
4) In “Settings” tab check a “Debug” checkbox
5) Save changes
6) Open “Debug” tab,
7) Send me a copy of the debug info or make a screenshot of the info you get
PS: You can attach a screenshot using a Lightshot