The Git Hang and the Admin/Mod user Accs Oops Error Page Error

Kind of looks like something to do with presenting the upcoming changes - that’s something only admins would see. According to ask.discourse.com

The entire feature is controlled by a hidden site setting called enable_upcoming_changes, set to false in a Rails console:

SiteSetting.enable_upcoming_changes = false

However, this requires terminal/server access, so it’s only doable on self-hosted installs.