Here is my code

{
				  module: "MMM-CalendarExt3Agenda",
				  position: "top_left",
				  header: "My Agenda",
				  config: {
					instanceId: "basicCalendar",
					locale: 'de-DE',
					firstDayOfWeek: 1,
					startDayIndex: 0,
					endDayIndex: 5,
					calendarSet: ['Elyas', 'Benjamin'],
				  }
				},

In the debug console i see the following error

MMM-CalendarExt3Agenda.js:186 [CX3A] Module is not prepared yet, wait a while.
getDom @ MMM-CalendarExt3Agenda.js:186
CX3_shared.mjs:1 
        
        
       Failed to load resource: the server responded with a status of 404 (Not Found)
MMM-CalendarExt3Agenda.js:105 TypeError: Failed to fetch dynamically imported module: http://localhost:8080/modules/MMM-CalendarExt3Agenda/CX3_Shared/CX3_shared.mjs
(anonymous) @ MMM-CalendarExt3Agenda.js:105
MMM-CalendarExt3Agenda.js:116 Uncaught (in promise) TypeError: Cannot read properties of undefined (reading 'prepareMagic')
    at MMM-CalendarExt3Agenda.js:116:20

I do not know what to do
Can please somebody help me?
Thx