CakePHP and Opencart -- 2

We are completing a job for a client on Opencart eCommerce and have come across a small roadblock at the end. There is some integration work a previous developer had done to push and pull information from opencart to the on-premise accounts system. It was done using CakePHP and Cron Jobs. We have the code but cannot seem to get it working on new server and site. Need someone with experience in CakePHP and Cron to jump in and help resolve this issue.