Probably the download is not correctly terminated. You should restart with the other slot containing tha 3.3.2, remove the upgrade package and try again.
I Can’t download with this message
All prerequisites satisfied
Checking dependencies for 53400:Release …
The package has no dependencies
Downloading and extracting the package 53400:Release …
Resolving updates.zeroshell.org… failed: Host not found.
tar: This does not look like a tar archive
tar: Exiting with failure status due to previous errors
>> ERROR: Downloading process has failed