WebGility Status Page Forwards to another Domain Rather than Staying on Status Page

I'm using Magento with WebGility & QuickBooks and QuickBooks POS is connected successfully but the WebGility status page continues to redirect to another domain rather than stay on the status page. WebGility error states: The input is not a valid Base-64 string as it contains a non-base 64 character, more than two padding characters, or an illegal character among the padding characters.