Have an issue where using the Mileage Calculator opens a blank white window that never loads anything.

I've attempted to use it on Edge, Firebox, and Chrome. My coworkers around me are not experiencing this issue. I used to use this about a 3 months ago and it worked fine. I've seen other posts and comments here and elsewhere about this issue and I never saw a true solution. I have restarted my PC and waited a week before making this post.

My management has requested that I use the calculator instead of entering it myself. I'm sure I could ask to be an exemption but I'd like the calculator to work.

Does anyone have a solution or ideas?