Long time user, but not in a while cannot get upload to work

I am a users that hasn’t been on Songtree/N-Track for a while. I am trying to upload an overdub. It looks like everything is going to work (compression, upload, etc.) Until the very end and I get these two messages boxes and my overdub fails. I am attempting to use the free version (I would upgrade, but not until I know this is actually going to work.) I am on Mac OSx 11.4, with the latest version of n-track studio.

Any help would be appreciated.

Hello Miles_Porter,

we had a temporary issue with our server.
The upload on Songtree should work as expected now.