Storyboard Pro and Harmony opens, but won't load project properly + won't respond at all

I was using Storyboard Pro and Harmony just fine last night, then all of a sudden, as I open up my project I was just working on last night again, both programs won’t respond at all. The whole scene window will open up fine, except that it doesn’t show the current panel I’m on, it’s just black instead.
I really need help with this asap cause my class trimester has just started and I need these to work