sudo sfdx plugins:install @salesforce/lwc-dev-server
Polling for new version(s) to become available on npm... done
    HTTPError: Response code 403 (Forbidden)
    Code: ERR_NON_2XX_3XX_RESPONSE

When I try to run sfdx the same way I have for about 4 years, I get this error message:

'"C:\Users\Desja\AppData\Local\sfdx\client\bin\..\7.209.6-8ba3197\bin\sfdx.cmd"' is not recognized as an internal or external command, operable program or batch file.

>>> Why is it trying to run sfdx from that folder? It's not in that folder!

In this folder: C:\Users\Desja\AppData\Local\sfdx\client I have two sub-folders, "bin" and "7.209.6-8ba3197", the 2nd of which appears to have been created on 9/5/23 (just 2 days ago). The "bin" folder contains 2 files: sf.cmd and sfdx.cmd, while the "7.209.6-8ba3197" folder contains a "bin" folder, which contains a single file named "node.exe"

CLI has become a very valuable tool for me as I support 19 nearly identical orgs for the chapters of a national non-profit that works for the homeless. I have no idea why it has stopped working so mysteriously.

I have been through several existing messages on here that all seem to point to the PATH environment variable. The correct folder is present in my path, but the error message indicates it's trying to run sfdx from that other folder named 7.209.6-8ba3197\bin -- why?

Thank you for any clues to help resolve this.