Joomla! Template Global PT - Item Support

Goodday!
Iv'e tried to install your premium template per your instructions but get this error message:
JInstaller: :Install: Can't find Joomla XML setup file.
The Joomla package cannot be installed through the Extension Manager. Please use the Joomla! Update component to update Joomla.

I confirmed I have the most recent version of joomla3:
" You already have the latest Joomla version, 3.6.4."

I've looked into the quickstart zip and found no xml file.

I'm stuck as what to do next. I'm sending this comment at the same time as I send one to my host. Please let me know anything you can. I'm eager to start using your template.
Sincerely,
D
MY PURCHASED ITEMS
Item Name: 002063 - Regular License
Item Type: Joomla! 3 Bootstrapped Template
Domain Name: http://www.purpleseek.com
Special Info:
SAVE
Purchase Date: 29 November 2016
Last Download: 30 November 2016
Expiration Date: 29 November 2017
VIEW INVOICE DOWNLOAD
Hello DDELIO1,
For the template 002063 please use appropriate template comments page: http://www.astemplates.com/joomla-template-comments/228-002063

Regards, AS Team.
Item Name:
Global PT
Sales:
137
Created:
2014-06-19
Updated:
2017-05-24
Item Version:
4.2.1
$28.00
Regular License
This item may be used for a single domain only.
$39.00
Extended License

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