Letscode won't start: A JavaScript error occured in the main process

Hi there,

after installing Letscode and running it as Administrator under Windows 10 I keep getting the Error Message "A Javascript Error occured in the main process"

Seems a variable is not set, but I have no idea how to solve that issue. Anyone having an idea? My son would love to start coding with his Crowbits Inventor Kit and the micro:bit.




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