Display Data on specific users Page

Hello!

Im creating a app where users can add Services which are stored in a database. Companies can then send us (App Admins) a Service request and we find a user who offers that service.

I need to be able (as a App admin) to display Data on a Specific users “Active Jobs” page. This is the Workflow:

A user logs in and adds their service to their profile
Us admins see the service in our database
A company sends us a request for a Service and we find a user which offers the needed service
We then want to be able to display that “job offer” on the Users “New Jobs” screen. How is this possible?

I have created a database called “active Jobs”. I then set up a “New Jobs” page for users, were Data from the “Active jobs” database can be displayed in a List. When i try to add a entry to the database and select the specific user it should go to, i get the message: Internal Server error

Does anybody know how to add this somewhat simple feature?