Activity Starter Extension showing error when inserting calendar event

An extension developer, probably @mahmoud_hooda could update the modified activity starter extension and catch that error…
what pepemont did, see here https://groups.google.com/d/msg/mitappinventortest/IM9yDZDAm-Q/IcxUtvX2BQAJ
and the original Activity starter code can be found in the App Inventor sources

Taifun

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