Compiling the example smart contracts in the plutus playground cause error

Hi,

when compiling the example smart contracts in the plutus playground i get the error: “DecodingError: (“Unexpected token < in JSON at position 0” : Nil)
Please try again or contact support for assistance.”
does anyone have an idea?

Thanks. =)

Invalid JSON in the response body, idea, you could track with an XMLHttpRequest to catch the error.