HTTPS (SSL) Not work

Hi,
I cannot use any ftp with ssl. I find the clue but not the solution.
As soon as I remove the relative instruction in .htaccess file the ftp in simplecms works again.
ftp is working with ssl with any ftp client without problems.
ftp is not working with SSL via simplecms only.
It was working till few days ago.
I already try with ftp, sftp, https.www or without www, I try to create a new account, change computer and so on.
Maybe I have to change the port but there is no this option in simplecms
This is the typical .htaccess configuration for ssl:
RewriteEngine On
RewriteCond %{HTTPS} off
RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI}
If I remove it the ftp via simplecms works.
Please try to solve this.
The error is:
"The website address you have specified could not be found: https://www.lawyerpattaya-thailand.com/index.html - please try again." but of course the page does exist.
Hope you can help me now everybody want to use ssl.
Thank you.