I’m encountering an issue while setting up the WhatsApp API. Specifically, when I try to verify my WhatsApp number on the setup page, I receive the following error: Got unexpected null or undefined

Here are the steps I followed and the details of my setup:

WhatsApp API Setup:
Followed the official documentation to set up the WhatsApp Business API.

Adding Phone Number:
Navigated to the WhatsApp API setup page to add and verify my phone number.
Entered the phone number in the required format.

Error Encountered:
Upon submitting the phone number for verification, the system returns the error: Got unexpected null or undefined.