The log suggests that you used 'InstallerFileName.msi' on the command line. Maybe you missed the text "Change "InstallerFileName" to the name of Ornatrix installer file" in the docs.
Your command should look like:
msiexec /i Ornatrix-Maya-2-5-2-23231-win64_3434203130203334323336.msi /l*v Install.log
Ivan Kolev (Software Developer, EPHERE Inc.)
E-mail: ivan.kolev at ephere dot com
Discord: ikolev