Hi @pyofchin,
Thank you for reaching out to us!
I’ve reviewed the attached screenshots, and it appears there might be an issue with how you’ve configured the action. Please adjust the expressions used in the “range start” and “range end” fields to ensure they provide the correct date values, meaning that the higher date being set to the 'range end" field
Additionally, could you please provide more details about the content of the dropdown? The error seems to be related to the plugin expecting a date as input data but receiving an object instead.
Hoping to hear back from you soon 
Wishing you a great day! 