Payzippy Payment Processing is Not working

Hi

I have a issue in Integration Payzippy For My site when i click on Place Order from checkout page System directly redirect to the Page which i have selected in Return URL from settings

If I am using UI Integration Mode = Iframe it is direcly directed to return page and if i will use UI Integration Mode = Redirect then Payzippy url is visble in browser and then page directly goes to Return Page no options for selecting Payment Type and etc

Thanks
Meghana Shah

https://ww.wp.xz.cn/plugins/woocommerce-payzippy-payment-gateway/