PayPal RESTful API Payment Module

[mprough]

When I press the Confirm Order button in PayPal, I get sent back to the cart, but I'm logged off.

The only PayPal log I have is the first one created:

2024-06-28 13:40:16: (index) ppr_webhook_main (return, live) starts.
{
"op": "return",
"token": "***",
"PayerID": "***",
"main_page": "index"
}

I don't see where this is solved. I have this similar issue

Zen Cart 2.1.0
PHP 8.3
OPC 2.5.4
Boot 3.7.4
PayPal RESTful 1.0.5

2025-01-13 09:46:08: (checkout_one_confirmation) ==> End confirmPaymentSource
2025-01-13 09:46:08: (checkout_one_confirmation) pre_confirmation_check, sending the payer-action off to PayPal.
************************************************

************************************************

2025-01-13 09:46:10: (index) ppr_webhook_main (cancel, live) starts.
{
"op": "cancel",
"token": "xxxxxxx",
"main_page": "index"
}
************************************************

2025-01-13 09:46:10: (checkout_one) validateCredentials: Checking (1).
TokenCache::get, using saved access-token; expires in 30171 seconds.

************************************************

Thanks
Melanie