hi Could you please explain what kind of problem its showing?

After i install quick install it turn me back on a screen it looks like preinstall joomla options, i try install clean joomla, it is ok, i try other template, it is ok, only that I can't install, how I can send you a screen shots? i can send you a link you can see it http://apartman.solar-it.hr/installation/index.php

not helping, i know how to install

Its not installation documentation. Its the documentation of quickstart installation problem