Payment not being collected using Ninja Forms

Hi,
I set up the plugin with Razorpay, made a test payment within the configuration page, which was successful.
However, I am trying to integrate the plugin with Ninja Forms, but it’s not working.

After submitting the form, the only message I get is the form has been submitted. It doesn’t redirect to the payment gateway, nor do I get any error.

Please help.

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