Rpi_rf not working anymore

Hi there, maybe someone can help me, my rpi_rf switches doens’t work anymore.
Since yesterday, but I didn’t change anything.

Here the log:
ERROR (MainThread) [homeassistant.components.switch] Error while setting up platform rpi_rf
Traceback (most recent call last):
File “/srv/homeassistant/homeassistant_venv/lib/python3.4/site-packages/homeassistant/helpers/entity_component.py”, line 153, in _async_setup_platform
entity_platform.schedule_add_entities, discovery_info
File “/usr/lib/python3.4/asyncio/futures.py”, line 388, in iter
yield self # This tells Task to wait for completion.
File “/usr/lib/python3.4/asyncio/tasks.py”, line 286, in _wakeup
value = future.result()
File “/usr/lib/python3.4/asyncio/futures.py”, line 277, in result
raise self._exception
File “/usr/lib/python3.4/concurrent/futures/thread.py”, line 54, in run
result = self.fn(*self.args, **self.kwargs)
File “/srv/homeassistant/homeassistant_venv/lib/python3.4/site-packages/homeassistant/components/switch/rpi_rf.py”, line 50, in setup_platform
import rpi_rf
File “”, line 2237, in _find_and_load
File “”, line 2226, in _find_and_load_unlocked
File “”, line 1200, in _load_unlocked
File “”, line 1129, in _exec
File “”, line 1467, in exec_module
File “”, line 1570, in get_code
File “”, line 656, in _compile_bytecode
ValueError: bad marshal data (unknown type code)

Thanks guys