Disabling access to the store for users from some country

Log in your administrator panel and click on the Addons link in the ADMINISTRATION side box on the right.
Select the Access restrictions option and click on the Update button.
Set up settings for this addon in the Access restrictions tab on the same page.
The Access restrictions link will be displayed in the ADMINISTRATION side box after that. Click on it.
On the opened page add the IPs or domain names, which need to be disabled in the IP or Domain sections.