Error: “Failed to execute test ‘test1’ on Chrome: null” or Failed to execute test 'Test2' on None: null ;

I have created the jar and uploaded and when I run the project I am getting this error.
Its a simple Maven project with 2 test cases only.

I already followed all the steps mentioned in this document, GitHub - testproject-io/java-opensdk: TestProject Java OpenSDK

Any help on this will be appreciated.