ERROR	[Ametys.data.ServerComm]	Une erreur est survenue dans le traitement de la réponse serveur (TypeError: Cannot read property 'each' of undefined)
	TypeError: Cannot read property 'each' of undefined
	    at null.<anonymous> (http://localhost:8080/cms/plugins/web/resources/js/Ametys/plugins/web/page/controller/AddContentController.js:62:13)
    at Ext.define.each (http://localhost:8080/cms/plugins/extjs6/resources/ext-all-debug.js:39754:20)
    at Ext.define._getAvailableContentTypesCb (http://localhost:8080/cms/plugins/web/resources/js/Ametys/plugins/web/page/controller/AddContentController.js:58:24)
    at null.<anonymous> (http://localhost:8080/cms/plugins/core-ui/resources/js/Ametys/data/ServerComm.js:382:19)
    at Array.forEach (native)
    at Object.Ext.Array.ExtArray.forEach.i [as forEach] (http://localhost:8080/cms/plugins/extjs6/resources/ext-all-debug.js:3079:30)
    at Ext.define._callProcessed (http://localhost:8080/cms/plugins/core-ui/resources/js/Ametys/data/ServerComm.js:381:23)
    at null.<anonymous> (http://localhost:8080/cms/plugins/core-ui/resources/js/Ametys/data/ServerComm.js:789:29)
    at Array.forEach (native)
    at Object.Ext.Array.ExtArray.forEach.i [as forEach] (http://localhost:8080/cms/plugins/extjs6/resources/ext-all-debug.js:3079:30)