Premier Rush is Crashing on Render/Export on iPad Pro and iPhone 11 -- TIME SENSITIVE

HELP!!!  Trying to export a 12 minute minute video filmed using iPhone 11 and edited in Premier Rush (premium paid account).  The app crashing on both my iPad Pro and my iPhone 11 and have a time sensitive deadline.  Tried turning off and fully charging both devices and still have not been successful.  Growing increasingly frustrated and concerned about meeting a deadline for debuting the film during an online event happening in a couple of days.  About a week ago I was able to render and export without this issue.  What's happening?!  Any tips?!?!  Is this a factor of the product update that was released Sept 16?  Do I need to download the update... I'm scared I'm going to lose my project if I do.