Systems Management upgrade gives errors on Ubuntu 20.04

When I try to upgrade using this package:

Systems-Management_Application_KW3YN_LN64_4.2.0.0_A00.BIN

I get the following errors:

./dcism-dup-update.sh: line 94: [: 42002581ubuntu20: integer expression expected

./dcism-dup-update.sh: line 96: [: 42002581ubuntu20: integer expression expected

It says the update was successful but it was not.