Key error when accessing vSphere folder

[petrSchreiber]

Traceback (most recent call last):
  File "/app_python/labmanager-unit-vsphere/vcenter/vcenter.py", line 947, in __collect_system_folders
    raise e
  File "/app_python/labmanager-unit-vsphere/vcenter/vcenter.py", line 915, in __collect_system_folders
    root_folder_moref = self.__get_system_root_folder()
  File "/app_python/labmanager-unit-vsphere/vcenter/vcenter.py", line 823, in __get_system_root_folder
    folder = self.vm_folders[settings.app['vsphere']['folder']]
KeyError: '/vm/qa/your_cluster'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
  File "/app_python/labmanager-unit-vsphere/vcenter/vcenter.py", line 308, in deploy
    self.vm_folders.create_folder(settings.app['vsphere']['folder']),
  File "/app_python/labmanager-unit-vsphere/vcenter/vcenter.py", line 881, in create_folder
    self.__collect_system_folders()
  File "/app_python/labmanager-unit-vsphere/vcenter/vcenter.py", line 949, in __collect_system_folders
    objView.DestroyView()