CoinGate bitcoin payment gateway PrestaShop plugin.
Go to your PrestaShop admin panel » Modules and Services.
Click Add a new module, then click Choose a file, find the file you just downloaded, select it and click Open. Click Upload this module.
In the Modules list choose Payment and Gateways.
Find Bitcoin via CoinGate and click Install button to next to it, then click Proceed with the installation.
Enter your API credentials (App ID, API Key, API Secret) and click Save.