Powershell credentials loop

When working with a powershell project, I found myself with a credential problem and the following error:

Invoke-RestMethod : {"error":"bad_request","reason":"[{key_missing,ackmode}]"}

Browsing the internet I found a solution that consisted in adding the line of code

"ackmode" = @("ack_requeue_true", "ack_requeue_false")[[bool]$Remove]

to the project in the @body:

$body = @{
            "count" = $Count
            "requeue" = -not [bool]$Remove
            "encoding" = $Encoding
        }

The problem with which I find myself is that it asks me for credentials constantly every 3-5 seconds, is there any way to avoid that?

The project is made following this tutorial.