I installed FTB Revelations through the FTBApp and it worked perfectly fine when I played singleplayer. Several hours later when I attempted to load the mod again, my game crashes before I can even click on my singleplayer world and load it. I then get an error with the message
The game crashed whilst updating screen events
Error: java.lang.IndexOutOfBoundsException
Exit Code: -1
Here is the crash report: https://paste.feed-the-beast.com/view/5a827eca
The game crashed whilst updating screen events
Error: java.lang.IndexOutOfBoundsException
Exit Code: -1
Here is the crash report: https://paste.feed-the-beast.com/view/5a827eca