Problems after Quickstart Installation

Hi @all
I downloaded the preconfigured quickstart package infinity.
Istallation was fine, but live site showns an error:
Fehler: Umleitungsfehler
Beim Verbinden mit utftours.de trat ein Fehler auf.
Dieses Problem kann manchmal auftreten, wenn Cookies deaktiviert oder abgelehnt werden.

Cookie settings in Firefox is correct, event tired several other settings. No change.

Furthermore, after updating joomla system and extensions (which went ok), I tried to enter my download ID, but now I cant save my settings.

Also, when trying to set https to > complete site, system returns "no https available", which is definately wrong. Https was configured correctly.

Also it seems, that the editor is not loading, even if editor is set to tiny in the configuration.

When entering the article list, it looks strange, too. See attached file.
Even tried to reinstall everything, no change

Whats wrong here?

UPDATE:
2nd time complete reinstallation, Editor is loading now.

STILL:
can't save changes in configuration (no reaction on save or save & close), rights on configuration.php are set correctly.
"https not available on server", checked that, https ist def. set correct, also shown in URL
redirection error on loading live site
can't save anything, no changes in solidres system.
Available update for solidres system, plugins and infinity temolate is shown, but can't update via joomla update system

I really start getting angry as I don't get any response or assistance. Payd 129 USD for the budle and can't use it!

Hi,

Please raise a private support and provide us your site information, including FTP and database access so we can assist you better.

Regards,