Error while running install.sh

How would you like to handle WinApps pre-configured applications? (Use arrow keys) Select which pre-configured applications to set up
? Which pre-configured apps would you like to set up?
to finalize) Microsoft Excel (excel-o365), Microsoft Explorer (explorer), Microsoft Word (word-o365)
Configuring Excel... Finished.
Configuring Explorer... Finished.
Configuring Word... Finished.
/home/joeljose1001/.local/share/winapps/detected: line 31: Get-Item: command not found
/home/joeljose1001/.local/share/winapps/detected: line 32: At: command not found
/home/joeljose1001/.local/share/winapps/detected: line 33: syntax error near unexpected token `('
/home/joeljose1001/.local/share/winapps/detected: line 33: `+ $Name = (Get-Item $Exe).VersionInfo.FileDescription.Trim() -r ...'

Icons are not appearing in app menu either.
bin/winapps check - worked perfectly though.