Unable to collect kobiton devices when starting Mobile Spy

Trying today to record Android script. Started Mobile Recorder and set Device Type to Kobiton devices.
Received warning - Unable to collect devices Reason: JsonSyntaxException
Details: java.lang.IllegalStateException: Expected BEGIN_OBJECT but was STRING at line 1 column 1 path $

Using Katalon Studio 5.8.0 Build 1 which says up to date.
On macOS 10.13.6.
I am able to login to Kobiton.

Please advise.