Checkout Page issue after upgrading magento from 2.3.5 to 2.4.4

[carlos_lopera]

Hello,

Could anybody help me please? I updated a website in Magento from version 2.3.5 to 2.4.4, but my checkout page has an issue. This page shows "Something went wrong with your request. Please try again later.". I can see in my browser console some alerts with 404 not found message and in those urls I see "undefinedrest"; I think this one is the cause for my issue in the checkout page. Maybe does anybody know how I can solve this issue please?

https://snipboard.io/X8JOeh.jpg 

https://snipboard.io/y9Near.jpg

This is my system.log, but I don´t know if those messages are related with my checkout page issue.

https://snipboard.io/BPEdxs.jpg 

I appreciate your help, I've worked a lot to try to solve this issue, but I can't find any solution. Thanks.

[gaurav_harsh1]

Hello @carlos_lopera ,

Seems like you are using any third party or custom module related to captcha, but it must not be compatible with magento 2.4.4, some undefined variable is being added before the captcha URL as you can see in error.
Just check from where the URL is generating and check which module is related to captcha, you will get the clue.
Also system.log errors are not related to this issue, check exception.log for detailed error.

Hope it helps !

[carlos_lopera]

Thank you for your answer @gaurav_harsh1, but my exception.log don't have any error related with this issue. I tried to disable all captcha modules but nothing seems to work. 

https://snipboard.io/5t2HZb.jpg

https://snipboard.io/1nTyj0.jpg 

And I've tried to follow the error message or urls construction and I only can see them on performance-toolkit, I don´t know if that one is generating my problems.

https://snipboard.io/8G9uES.jpg 

https://snipboard.io/FdjZq6.jpg 

Really I feel lost, I don´t know how I could solve this issue. This is my base_url config in admin panel: https://snipboard.io/n57jzM.jpg https://snipboard.io/K3eaiN.jpg . I'm desperate, please help me. Thanks.