Parsing ics data failed:Content line could not be parsed into parts: 'REFRESH - INTERVAL; VALUE = DURATION:PT48H': REFRESH - INTERVAL

[MaxRei-dev]

I got this error from this Source: https://data.umweltprofis.at/OpenData/AppointmentService/AppointmentService.asmx/GetIcalWastePickupCalendar?key=UixrcO9GyWsrzB1TEMsJdiNt5TybWZRxJymo7F1gg1zkrJwWqAV-YeCv4wIEBb144fBdsvki_q5Pa8JE7SXO8w2

i test the source via some online ics validators and is seams ok.

thank you.