Zend certified PHP/Magento developer

Magento 2.4.3 Upgrade from 2.3.0 showing iframe for Online payment

I have upgrade magento 2.3.0 to magento 2.4.3, everything is working perfectly but when selecting CCAvenue online payment, one iFrame is showing below to enter credit card information with “Payment Information” header before proceeding which was not coming before.

How to remove this iFrame?