FWIW, I get the same error as waxcylinder.
You can try using the recovery tool described here: Corrupt or Otherwise Broken Audacity Project Recovery
Unfortunately this tool does not currently run under MacOS. I am assuming you do not have access to (or a friend with) a Windows machine, so I have repaired it on my machine.
I have uploaded the repaired file and PM’d the link to you.
As this is not the first time you have had corruption issues with Audacity projects, it may be time to step back and ask yourself, why is this happening to me?
Note that the SQLite3 tools internal to Audacity do not play well with networked drives. When using these resources, it is always best to make a local copy of your project and run Audacity directly with the local copy. There may be some other issue that you are running into…