Systemplugin manuel gelöscht! Wie wieder installieren? HDMI CEC newenigma2

Traceback (most recent call last):
  File "/usr/lib/enigma2/python/mytest.py", line 713, in <module>
    runScreenTest()
  File "/usr/lib/enigma2/python/mytest.py", line 552, in runScreenTest
    session = Session(desktop = getDesktop(0), summary_desktop = getDesktop(1), navigation = nav)
  File "/usr/lib/enigma2/python/mytest.py", line 279, in __init__
    p(reason=0, session=self)
  File "/usr/lib/enigma2/python/Plugins/SystemPlugins/HdmiCec/plugin.py", line 66, in autostart
    cec.powerOn()
  File "/usr/lib/enigma2/python/Plugins/SystemPlugins/HdmiCec/plugin.py", line 35, in powerOn
    if config.cec.sendpower.value:
  File "/usr/lib/enigma2/python/Components/config.py", line 1572, in __getattr__
    return self.content.items[name]
KeyError: 'cec'