@Stella Song , Thank you for reaching out. This error states that the reply URL that is being sent in the request and the one that is present in the app registration section in AAD for your application.
Based on the error details that shared, I looked into the backend logs based on the CorrelationID and Timestamp and based on that I do see that there is a mismatch of ReplyURLs for this application with AppID: 4b233688-031c-404b-9a80-a4f3f2351f90
I would request you to check the "Authentication blade" in the App Registration for the following app "4b233688-031c-404b-9a80-a4f3f2351f90" and once you check that pick up one of the reply URLs from that list and then add that in your application request and use it or you add the reply URL that you are currently sending in the request to that reply URL section in the authentication blade.
Hope this helps.
Do let us know if this helps and if there are any more queries around this, please do let us know so that we can help you further. Also, please do not forget to accept the response as Answer; if the above response helped in answering your query.