Scheduling Won't Load

I was creating new routes for one of my airlines this evening when the scheduling page suddenly stopped loading. I can get to the page itself but nothing shows up. The same thing happens whether I click directly on scheduling from the routes tab or attempt to reach it via route management or the aircraft itself. I tried clearing my cache and I tried using my mobile phone instead of my laptop but got the same result. I can't schedule new routes. It was working until it wasn't so now I have partially scheduled aircraft.