401 Error when calling API call with ISODate parameter

I’m trying to create a private app to connect Freshdesk with Squarespace Commerce. I’m trying fetch order details. When I call the API without any parameter, the call went through just fine. But when I added time parameter (using ISO date) format, I got 401 error.

The call without parameter

https://api.squarespace.com/1.0/commerce/orders

The call with time parameter

https://api.squarespace.com/1.0/commerce/orders?modifiedBefore=2022-07-07T12:00:00Z&modifiedAfter=2020-07-05T12:00:00Z

This makes me think that adding the parameter changed the bearer token format somehow? I ran the same calls via Postman and didn’t get 401 error.

Any thoughts or directions on troubleshooting this issue? Thanks in advance!

This is the API call details:

I converted the date to ISODate format:
squarespace_code_ISODate

The payload:

The error: