Read the statement by Michael Teeuw here.
MMM-FRITZ-Box-Callmonitor
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 @ostfilinchen my current config looks like this: { module: 'MMM-FRITZ-Box-Callmonitor', position: 'top_right', header: "Anrufliste", config: { maximumCallDistance: 7200, username: "***********", password: "********************", showContactsStatus: true, vCard: false } },i think it looks good? 
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 @kwaeksler yes. It looks good. Is the Module now working? 
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 @ostfilinchen No :-( 
 i still get a small warning sign and an “unknown error”the incoming call shows me a number, not a name. 
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 @kwaeksler puh… now I have no ideas. You have create an User and password in the fritz.box? And… Do u have Updated your rpi? sudo apt-get update 
 sudo apt-get dist-upgrade
 sudo rebootIf After this the Module doesn’t work open an issue on github. 
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 Hello everybody, first of all @ostfilinchen: Thank you for your great support! I just want to tell you, that kwaeksler is not the only one facing this problem. 
 Exactly this problem also appears on my MagicMirror installation.Currently i have no possibility to check anything regarding my MagicMirror installation, but as soon as i have time (this weekend) i’m going to catch some more information that may be helpful for you (firmware version FritzBox, config MagicMirror, …). I already tried 
 sudo apt-get update
 sudo reboot
 without succes.Additionally i’m going to try 
 sudo apt-get update
 sudo apt-get dist-upgrade
 sudo rebootBest regards 
 Aaron
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 Yes, i updated the pi yesterday with: sudo apt-get update 
 sudo apt-get dist-upgrade
 sudo rebootafter a long time of waiting the same warning sign :-( 
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 @kwaeksler which nodejs Version Do u have? You can Check this with nodejs -v My Version is 7.4.0 Maybe it’s a good idea to update this with 
 curl -sL https://deb.nodesource.com/setup_7x | sudo -E bash -
 sudo apt-get install -y nodejs
 sudo npm install -g npm
 sudo npm install -g npm
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 @ostfilinchen i had the nodejs Version 6.9.4. So i updated the version with: curl -sL https://deb.nodesource.com/setup_7.x | sudo -E bash - sudo apt-get install -y nodejs sudo npm install -g npmNow i have Version v7.4.0 but still the same error like before :-( 
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 @kwaeksler do you really have Version 7.4.0? in some cases you must execute the command sudo npm install -g npm two times. if you’re sure that u have v7.4.0 and the module doesn’t work, please delete the Folder of the module (MMM-FRITZ-Box-Callmonitor) and reinstall again. 
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 @kwaeksler Also, is there any new output in the logs? 

