How to Fix Ajax 500 error on add payment gateway

Problem/Motivation

Reported in configuration:
Drupal core version: 10.4.5
Payu module version: 8.x-1.0-alpha1
Drupal Commerce version: 3.0.1
Php: 8.3.10
all modules installed with composer
Problem: after installing the module (multiple time caches cleared), when we click add payment gateway and select radio button for PayU gateway
The following error appears in top of page:

"Error message
Oops, something went wrong. Check your browser's developer console for more details."

when we check developer console following message is there that we captured in a text file and only changed our domain name to ex1.com to hide it, rest we are reporting it as it is. it is recurring in all browsers I have Firefox, crome, edge

Uncaught
Object { message: "\nAn AJAX HTTP error occurred.\nHTTP Result Code: 500\nDebugging information follows.\nPath: /admin/commerce/config/payment-gateways/add?ajax_form=1\nStatusText: error\nResponseText: ", name: "AjaxError", stack: "@https://www.ex1.com/core/misc/ajax.js?v=10.4.5:196:32\n@https://www.ex1.com/core/misc/ajax.js?v=10.4.5:1935:3\n" }
ajax.js:196:32
error https://www.ex1.com/core/misc/ajax.js?v=10.4.5:1219
complete https://www.ex1.com/core/misc/ajax.js?v=10.4.5:608
jQuery 5

Steps to reproduce

Proposed resolution

Remaining tasks

User interface changes

API changes

Data model changes