MM crash with MMM-Sounds enable.

[lucmacpaquet]

Magic Mirror cannot start when MMM-Sounds configs are in config.js. I get a black screen and nothing more. I try with only that module in config.js, same thing. Delete the MMM-Sounds module, reinstalled it, same thing again.
Here the log. Thanks for your help.

magicmirror@2.1.1 start /home/pi/MagicMirror
0|mm | > sh run-start.sh
0|mm | Starting MagicMirror: v2.1.1
0|mm | Loading config …
0|mm | Loading module helpers …
0|mm | No helper found for module: alert.
0|mm | Initializing new module helper …
0|mm | Module helper loaded: updatenotification
0|mm | Initializing new module helper …
0|mm | Module helper loaded: MMM-IFTTT
0|mm | Initializing new module helper …
0|mm | WARNING! Could not load config file. Starting with default configuration. Error found: TypeError: m.loaded is not a function
0|mm | Loading module helpers …
0|mm | No helper found for module: alert.
0|mm | Initializing new module helper …
0|mm | Module helper loaded: updatenotification
0|mm | Initializing new module helper …
0|mm | Module helper loaded: MMM-IFTTT
0|mm | Initializing new module helper …
0|mm | App threw an error during load
0|mm | TypeError: m.loaded is not a function
0|mm | at loadModule (/home/pi/MagicMirror/js/app.js:144:6)
0|mm | at loadNextModule (/home/pi/MagicMirror/js/app.js:161:5)
0|mm | at /home/pi/MagicMirror/js/app.js:163:6
0|mm | at Class.loaded (/home/pi/MagicMirror/modules/node_modules/node_helper/index.js:19:3)
0|mm | at loadModule (/home/pi/MagicMirror/js/app.js:144:6)
0|mm | at loadNextModule (/home/pi/MagicMirror/js/app.js:161:5)
0|mm | at /home/pi/MagicMirror/js/app.js:163:6
0|mm | at Class.loaded (/home/pi/MagicMirror/modules/node_modules/node_helper/index.js:19:3)
0|mm | at loadModule (/home/pi/MagicMirror/js/app.js:144:6)
0|mm | at loadNextModule (/home/pi/MagicMirror/js/app.js:161:5)
0|mm | Whoops! There was an uncaught exception…
0|mm | MagicMirror will not quit, but it might be a good idea to check why this happened. Maybe no internet connection?
0|mm | If you think this really is an issue, please open an issue on GitHub: https://github.com/MichMich/MagicMirror/issues
0|mm | TypeError: m.loaded is not a function
0|mm | at loadModule (/home/pi/MagicMirror/js/app.js:144:6)
0|mm | at loadNextModule (/home/pi/MagicMirror/js/app.js:161:5)
0|mm | at /home/pi/MagicMirror/js/app.js:163:6
0|mm | at Class.loaded (/home/pi/MagicMirror/modules/node_modules/node_helper/index.js:19:3)
0|mm | at loadModule (/home/pi/MagicMirror/js/app.js:144:6)
0|mm | at loadNextModule (/home/pi/MagicMirror/js/app.js:161:5)
0|mm | at /home/pi/MagicMirror/js/app.js:163:6
0|mm | at Class.loaded (/home/pi/MagicMirror/modules/node_modules/node_helper/index.js:19:3)
0|mm | at loadModule (/home/pi/MagicMirror/js/app.js:144:6)
0|mm | at loadNextModule (/home/pi/MagicMirror/js/app.js:161:5)
0|mm | Launching application.