I get the same problem. @retroflex, this is the output log, may help if you want to fix the issue:
TypeError: Parser.parseURL is not a function
at Class.loadFeed (C:\Users\henri\MagicMirror\modules\MMM-Skolmaten\node_helper.js:44:10)
at Class.socketNotificationReceived (C:\Users\henri\MagicMirror\modules\MMM-Skolmaten\node_helper.js:31:9)
at Socket. (C:\Users\henri\MagicMirror\modules\node_modules\node_helper\index.js:113:11)
at emitTwo (events.js:106:13)
at Socket.emit (events.js:191:7)
at C:\Users\henri\MagicMirror\node_modules\socket.io\lib\socket.js:513:12
at _combinedTickCallback (internal/process/next_tick.js:67:7)
at process._tickCallback (internal/process/next_tick.js:98:9)