Joomla! Template CS Vigorous - Item Support

Hi

I just installed quickstart - all ok - But if i want to select an article in a menu - i always get this error:

Not Found

The requested URL http://beautystyles.ch/neu/administrator/index.php?option=com_content&view=articles&layout=modal&tmpl=component&function=jSelectArticle_jform_request_id&5aa87138ec1cc6e1b7ed3110e19125bd=1 was not found on this server.

whats the problem?
thanks
Hello PAT19711,
Something goings wrong in installation will suggest you that please reinstall template with proper way which is include in documentation. or send your project cpanel hosting details we will install for you.

Regards, AS Team.
Thx for your answer - i reinstalled it x-times already... what can i do wrong with installing quickstart?? i just extract all files directliy on the ftp server - then i followed the steps in the documentation - db installation etc. was all ok - i log in into the admin module - all works - but only edit item doesn't ...
on this server is already an old joomla version running - i made a new directory and copied the quickstart files there - is that a problem?
what kind of informations do you need exactly?

thank you..
thx a lot for the helpful and quick support - response...
great template!
Item Name:
CS Vigorous
Author:
Downloads:
29
Created:
2015-01-17
Updated:
2015-11-06
Item Version:
2.0.0
$35.00
Regular License
This item may be used for a single domain only.
$49.00
Extended License