Soucis avec l'output

[SndSpctr]

Hello, I've some trouble concerning Cecilia5.
I can't select any of my input or output device.
I'm on mac, catalina.
I'm using an RME Fireface as a soundcard.

And everytime I press play, I have this error message :

Cecilia can't run the current module, last valid module (or a random one if this failed too) will be reloaded.

Traceback:

Traceback (most recent call last):
File "Resources/audio.pyc", line 1837, in loadModule
File "/Users/borisarnal/.cecilia5/moduleRuntimeBackup.c5", line 73, in init
File "Resources/audio.pyc", line 784, in init
File "Resources/audio.pyc", line 1033, in _addGraph
File "Resources/audio.pyc", line 731, in init
File "pyo/lib/tables.pyc", line 650, in init
File "pyo/lib/_core.pyc", line 1876, in init
File "pyo/lib/_core.pyc", line 889, in init
pyo.lib._core.PyoServerStateException: The Server must be booted before creating any audio object.

Please review this part of the code and reload the module:

#-----

Merci d'avance..

Boris