Sign in to Printix Client gives script error

When I try to sign in to Printix Client for Windows I receive a script error. The Sign in dialog is actually a web page presented by the Windows embedded browser (Edge/Internet Explorer). Start by checking that your Internet Explorer is version 11. To troubleshoot the script error please refer to Microsoft Knowledge Base article:

• How to troubleshoot script errors in Internet Explorer

If you see a script error, we would very much like to know about it. Please submit support request and include the script error message. Thanks in advance.

The below is an example of a script error:

"An error has occured in the script on this page.
Line: 4600
Char: 21
Error: Unable to get property 'setItem' of undefined or null reference
Code: 0
URL: https://sign-in.printix.net/159/production.js
Do you want to continue running scripts on this page?"