SVG to Lottie Issues

Yesterday, I found the SVG to Lottie link and I was excited. It worked perfectly!! But today, when I tried it again, it does nothing. I tried in FireFox, Edge, and Chrome. I restarted my computer, but no matter if I drag and drop or Browse nothing happens. It does ‘flash’ like it is going to work but goes right back to the same screen. Is it just my computer? What do I need to do to get this awesome option again?! TIA