What updates? Have you installed the 2020 Desktop program and having trouble updating it? On Windows or Mac? What does 42001 mean?
Troubleshooting update issues on Windows
If your program says it's up to date or you can't update it then do the Manual Update.
The manual update in the FAQ that VolvoGirl referenced is out of date. The current update, as of today, August 8, is R42, which you can download from the following link.
The manual update is only for Windows, and only for the federal program. There are no manual updates for the state programs, or for the Mac.