On the Downloaded Addons page, click on >> Gear button then go to Manual installation. A pop window will be displayed You can install an add-on by picking a tgz,gz,zip format archive and clicking Upload & Install.
Add-on installed.
After Successfully installing the add-on Goto >Add-on on the administration panel Add-on>Manage Add-on>Ecarter Technology Pvt. ltd. You see no installed add-ons or newly installed add-ons and add-ons must be Active/On status if the addon is Off it is not working.