Traceback (most recent call last):
  File "/usr/lib/enigma2/python/enigma.py", line 6165, in __call__
    return ret(*args, **kwargs)
  File "/usr/lib/enigma2/python/Components/ActionMap.py", line 67, in action
    return ActionMap.action(self, contexts, action)
  File "/usr/lib/enigma2/python/Components/ActionMap.py", line 47, in action
    res = self.actions[action]()
  File "/usr/lib/enigma2/python/Screens/ScanSetup.py", line 1809, in keyGo
    self.startScan(tlist, flags, index_to_scan)
  File "/usr/lib/enigma2/python/Screens/ScanSetup.py", line 1837, in startScan
    self.session.open(ServiceScan, [{"transponders": tlist, "feid": feid, "flags": flags}])
  File "/usr/lib/enigma2/python/mytest.py", line 466, in open
    self.execBegin()
  File "/usr/lib/enigma2/python/mytest.py", line 334, in execBegin
    c.execBegin()
  File "/usr/lib/enigma2/python/Screens/Screen.py", line 90, in execBegin
    val.execBegin()
  File "/usr/lib/enigma2/python/Components/ServiceScan.py", line 180, in execBegin
    self.frontendInfo.updateFrontendData()
  File "/usr/lib/enigma2/python/Components/Sources/FrontendInfo.py", line 26, in updateFrontendData
    data = self.getFrontendData()
  File "/usr/lib/enigma2/python/Components/Sources/FrontendInfo.py", line 36, in getFrontendData
    frontend = self.frontend_source()
  File "/usr/lib/enigma2/python/Components/ServiceScan.py", line 142, in <lambda>
    self.frontendInfo.frontend_source = lambda : self.scan.getFrontend()
AttributeError: 'NoneType' object has no attribute 'getFrontend'