Steps to reproduce:

1. On the Host details page, navigate to the Parameters tab and click on 'Add Parameter.'
2. Enter the parameter name and set the type as boolean.
3. Retain the default value and click on 'Save.'

This results in the following error
"TypeError: Cannot read properties of null (reading 'toString')"

QE Tracker for https://issues.redhat.com/browse/SAT-22189
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2256452