App Store Connect Operation Error

I am unable to update my app in the app store because I am getting the following error screen during the upload. Has anyone encountered this and does anyone know the solution? Please see attachment for more details.

Turns out I almost ran out of disk space. Clearing some room on my internal hard drive fixed the problem and allowed me to upload successfully. I had a ton of iOS 13 device support files which were each ~2.3GB, they occupied a ton of space.