EarthDiagnostics cannot find model data

I'm running EarthDiagnostics on a new experiment and get:

Mesh files ready!
Traceback (most recent call last):
  File "./earthdiags.py", line 340, in <module>
    main()
  File "./earthdiags.py", line 336, in main
    EarthDiags.parse_args()
  File "./earthdiags.py", line 113, in parse_args
    diags.run()
  File "./earthdiags.py", line 144, in run
    self.data_manager = CMORManager(self.config)
  File "/home/Earth/fmassonn/git-stuff/earthdiagnostics/earthdiagnostics/cmormanager.py", line 29, in __init__
    raise Exception('Can not find model data')
Exception: Can not find model data