Site URL Not Working….

I have installed the plugin and have all the files in the right locations, all the right write/read/execute permissions set…but when I load my site I get a blank image as if the image was not found in the directory.

I right click and check the inspector for the image url which it is trying to direct to. Well it is printing 3/4 of my URL and not printing the rest, so therefor it is giving me a 404 error.

For example, my URL is

http://my.website.staging.wpengine.com

but this plugin is returning the URL http://my.website.staging.com

and therefore checking the wrong directory all together on getting the images for the captcha. How can I change the URL or hardcode it in so its the right one??? I’ve been reading through the code for an hour and can not pin point where it is. I thought it was $prefix, but no its not. Thanks, any ones help would be much appreciated.