I don’t understand what do you mean by:

Failed to fetch git data ; nothing else should be requesting git data

you showed that message, and infered that it might be causing your problem

I was explaining the only module in the system (supplied by MM) that accesses the git repo data for each module is updateNotifications

I don’t understand what do you mean by:

Failed to fetch git data ; nothing else should be requesting git data

nothing else should be requesting git data

I can’t read the picture

/*{
                       module: "updatenotification",
                       position: "top_bar"
               }
*/

It gives this error: [ERROR] Failed to fetch git data for MMM-MonthlyCalendar: Error: block timeout reached

this is caused by the updatenotfication module, going too fast…

fix in next release July 1.

config: {
updatesEvery: 30,
weeksInFuture: 5,

calendars: [
  {
    url: "http://localhost:8080/modules/MMM-MonthlyCalendar/calendars/<filename>.ics",
    priority: 1
  }
]

}
},

It gives this error: [ERROR] Failed to fetch git data for MMM-MonthlyCalendar: Error: block timeout reached