So today i bought myself a new SD card because the old one is faulty

After a fresh install of rasbian i tried to install MagicMirror using either the automatic install or the manual install.
Unfortunatly after the command npm install && npm start i receive the following error:

npm WARN deprecated time-grunt@2.0.0: Deprecated because Grunt is practically unmaintained. Move on to something better. This package will continue to work with Grunt v1, but it will not receive any updates.
npm ERR! Unexpected end of JSON input while parsing near ‘…“eslint”:"./bin/eslin’

npm ERR! A complete log of this run can be found in:
npm ERR! /home/pi/.npm/_logs/2019-04-14T14_27_41_163Z-debug.log
Unable to install dependencies!

anyone had this issue? if so, what is the solution?

Tnx in advance,
ThePierce