[Plugin: Woocommerce Stamps.com] Fatal error: Class 'SoapClient'…

So I purchased and installed the Stamps.com extension for WooCommerce. I read that this extension required SOAP on your server, and I was under the impression that had already been activated. Well after installing I received the error:

Fatal error: Class ‘SoapClient’ not found in /home/xxxx/public_html/wp-content/plugins/woocommerce-shipping-stamps/includes/class-wc-stamps-api.php on line 162

The website still works but I can’t figure out a way to get into the dashboard now.

Steps I’ve already tried:

• Looking for the Stamps.com folder in the Plugins folder – one wasn’t created
• Renaming the Plugins folder to Plugins2 – no success

Any other help would be awesome. Thanks