Fitness for Appian-getting errors

Hello everyone, i installed fitness for appian and configured the config.properties as shown in the documentation. But i'm getting the errors below.

this is my code:

!define TEST_SYSTEM {slim}
!define COMMAND_PATTERN= {java -Dlog4j.configuration=file:///${automated.testing.home}/log4j.properties -cp %p %m }
!path ${automated.testing.home} 



!| script             |com.appiancorp.ps.automatedtest.fixture.SitesFixture |
|setup with           |CHROME                    |browser                   |
|set appian url to    |https://url here|
|set appian version to|20                                                 |
|set appian locale to |en_US                                                |
***!

By the running the code above i am getting this error:

I have jre 1.8, but jdk path is not set. Could that be the issue?