Urgent: Troubleshoot Drupal6 / CiviCRM module error

I recently moved a Drupal 6 site to a new server ([login to view URL] / Aegir ). The original site had two databases - one for Drupal and one for the module CiviCRM. We combined the two databases into one. The site includes a custom module that connected to both databases. I commented out the lines in the module that switched between the two databases, and most of the module is now working. However a function in the module to upload files is not working correctly and returns a Page not Found error. The site previously ran on an old version of php and now runs on 5.6.33. What the module is supposed to do: 1) create a new node with an attached uploaded file 2) populate custom fields in the new node 3) return user to a destination page What is happening: 1) The module correctly creates a new node with the file attached 2) The module fails to populate two of the custom fields 3) The module fails to create the correct destination URL and returns a Page not found error Two attachments: I have attached the original module file that was working prior to moving the site to the new server, as well as the current module file in which I commented out the code that switches between I need this project done urgently.