Jairus,
So sorry for this situation. The core issue is the FIRST Robotics Windchill server hosted by PTC. It is currently at Windchill 10.1 F000. The current version is Windchill 10.1 M040.
10.1 F000 existed long before Windows 8.0/8.1 and IE 10/11. The only way to resolve this is for PTC to upgrade the FIRST Windchill server. We had hoped to complete the upgrade before the FRC go-live in January, but we were unable to get it done on time.
It is ready now, but we don't want to disrupt the service in the middle of the FRC season, so we are going to wait until May to begin the upgrade process and bring it up to Windchill 10.2 M010 which is the latest and greatest version of Windchill.
We have been discussing this quite a bit in the FIRST Community if you'd like to join us there.
-Scott