python OPENCoffee.py

python OPENCoffee.py
Traceback (most recent call last):
  File "OPENCoffee.py", line 245, in <module>
    main()
  File "OPENCoffee.py", line 224, in main
    config_error = initDataBaseConnection()
  File "OPENCoffee.py", line 65, in initDataBaseConnection
    msgSystem = MsgSystem(None)
  File "/home/elwuilmer/Descargas/opencoffee/opencoffee-server/core/msgSystem/msgSystem.py", line 25, in __init__
    self.loadImages()
  File "/home/elwuilmer/Descargas/opencoffee/opencoffee-server/core/msgSystem/msgSystem.py", line 101, in loadImages
    self.questionIcon = get_images()["msgIcon_question"]
KeyError: 'msgIcon_question'