Ajenti - HTTP to HTTPS redirect Problem

Hello Guys,

first, my enviroment:

Debian 8 - Apache 2.4 - Letsencrypt HTTPS signed Certificate

letsencrypt autmatically redirected HTTP requests to HTTPS

i installed Ajenti now, but i cant access it via HTTPS.

When i turn the redirection off, i can access it via HTTP.

Any Solution how i can Access it via HTTPS + redirecting from HTTP?

Thank your for your Help

Greetings - Pascal A.