Zend certified PHP/Magento developer

Checkout/cart order totals and shipping showing zero values after upgrade to Magento 2.4

After upgrading from Magento 2.2 to Magento 2.4.3, checkout order subtotal, grand total, shipping and everything in summary or cart page (not popup) are showing zero values.

I’ve tried to disable our One step page extension and switched to Luma theme, but its still showing the same.

Please help. Thanks in advance.