Supratim Chakraborty , 

Could you please share a screenshot of your terminal when you encounter the error? Also, provide the updated GitHub repository link so we can assist you in resolving the issue.

https://github.com/supratim-sc/Greatkart-Django/tree/paypal

Please checkout my GitHub link as shared above and while making payment, it is not showing any error on the terminal instead showing "Things don't appear to be working". I'm attaching an screenshot for the same with it.

Please checkout the error, for education purpose I'm using Rathan sir's paypal JS Script. Please help me out, so that I can use my own JS script of PayPal for my project on my resume.

Hi Supratim Chakraborty,

The problem you are facing mainly occurs when your Client ID or Secret ID is incorrect. Please make sure you have added the correct Secret ID and Client ID. Since you are still learning, also ensure you have added the following:

PAYPAL_ENVIRONMENT = 'sandbox'

If you still face any issues, let me know, and I will try to fix your problem.

Same error sir, I have checked and paste the Client ID as shown in my PayPal developer account, and also added PAYPAL_ENVIRONMENT = 'sandbox' in my settings.py file but still error not resolved.

Any way to solve the issue please let me know

In part 2,during paypal payment integration I'm facing errors. Paypal have removed their client side smartbutton integration. When I enter Rathan source code and click on paypal checkout button, I'm not able to proceed further with the payment after providing the sandbox personal mail. It says "sandbox.paypal.com refused to connect". I even turned off my network firewall but still im not able to find a solution. Please provide me support on this. I also couldn't check this in QA page.