It's possible that a blank screen appearing after clicking the Launch Trading Room button is caused by overzealous filters in the browser or in antivirus software. Make sure that you're allowing cookies to be set for the site (see the quick fix for Chrome users, below). In some cases, adding the website to the "Allow" list of sites for a browser like Chrome will help. If trying this fix, you can add the basecamptrading.com site, as well as the site that hosts the live trading room software, which is https://protradingroom.com/
Quick Fix for Chrome users
A quick fix for some Chrome users is to click on the eye icon that appears at the far right of Chrome's address bar. It appears to the right of the magnifying glass, as shown in the following image:
Click on the eye, which may have a slash through it indicating that Third Party Cookies are being blocked) and in the popup that appears, choose the option to enable the cookies for this site. Then check if you're now able to view the trading room site's content.