Error when using Get-OCIIdentitydomainsUsersList: [Unexpected character encountered while parsing value]

[problematiq]

Input:
Get-OCIIdentitydomainsUsersList -ConfigFile 'C:\Users\XXXXXXXXX\config' -Endpoint 'https://idcs-XXXXXXXXXXXXXXXXXXXXXX.identity.oraclecloud.com/admin/v1/'

Output:
Get-OCIIdentitydomainsUsersList: Unexpected character encountered while parsing value: <. Path '', line 0, position 0.