Architecture / Installation

One error is remaining:
Members musn't enter their email, because then login is refused.
But when omitting one's stocked email account, login works.
I'll change this back to NO additional email field on loggin-in.
It's called "Use challenge/response authentication:" -> doesn't work for 1.9.5 !!!
And it's the same error for "Geo" or standard "tiki" layout.
Actually for challenge/response, I'm more interested in the graphic CAPTCHA code!
So when someone works on this error, why no changing it?

OTHER ERROR I FORGOT:
Require secure (https) log-in is NOT working.
(either with, or without "allow secure (https) login")
BUT I found the cause of it; on this option it only wants to go to:
https://tiki-login.php , so forgetting my website address!
This is NOT the case if I select ALWAYS https, then it automatically knows my website address!
Ad it doesn't matter if I select/vink only "require" secure login, or together with "allow".
(this error also is the same for Geo and standard Tiki layout)
HOW CAN THIS BE? + how resolve this?