Hi. This is not possible. Quick Start is Joomla + tamplate. You can not install Joomla in Joomla.

thanks for your reply! I try to install it in desktop but the process sucked... Can I see a back end demo of a template online on your website? Or do you have a documentation of this template? http://demo.joomshaper.com/?template=themis

I am not an employee of support. Quick Start installation is the same as installation of clean Joomla. You can follow the Joomla standard documentation to install it.

employee of technical support I'd like to mention that your themis_quickstart_j3_v1.2 has a problem. Please check it.

Hello angelos

Pavel provided you the correct information. Please follow this documentation to know how to install the Quickstart package. You can not install in in Joomla. If you have installed Joomla, then install the template on it.

Please specify the issue on Themis Quickstart so that we can improve it.

Best regards