Windows script error "Unexpected token '?' in expression or statement"

[ameturpoet]

Describe the issue

This morning I downloaded the latest release of the PSBBN installer script for WIndows after having some success updating the install with the script previously, but now the latest version fails instantly when running the script, exiting with the following error:

(I also downloaded the other updated version released a few minutes ago, but it has the same error. I tried unregistering PSBBN in PowerShell and double-checking the script permissions as described, but I think this is an error in the script itself.)

[CosmicScale]

Just fixed. Delete the the script you have and re-download.