Checkout.com Integration Fix on Laravel Site

I require expert assistance with my Laravel 5 website which I've just started integrating with Checkout.com. Despite creating the keys and having an active account, I'm encountering errors. Unsure of the specifics as I haven't checked the error logs in detail.

* Troubleshoot Checkout.com integration errors
* Make the necessary fixes for seamless integration
* Optional but appreciated: Explain the nature of issues encountered

Keys skills and experience:

* Strong proficiency in Laravel 5
* Extensive knowledge and proven experience in Checkout.com integrations
* Ability to troubleshoot technical issues effectively
* Outstanding problem-solving skills
* Good communication skills for explaining technical issues in simple terms