Here is a link to a topic on this forum named "Installing the database on a Local Area Network (LAN)"
https://www.approvedworkman.com/forum/index.php?topic=89.0.
In your situation, just move your existing database to the server. Cut/Paste the Approved Workman folder from the client PC over to the Server.
Footnote: Just for the record and to distinguish between the current and a possible future version... I should clarify that AWdb is technically a "Desktop" database that can also be installed on a server and made accessible over a Local Area Network (LAN). This configuration differs from a true "Client/Server" database wherein the server does most of the processing work and only sends results back to the workstation client. In a desktop database, all the processing is done on the client, and the server (as in this case) is merely acting as a fileserver. As such, AWdb causes a lot of network traffic between the server and the workstation since a large volume of data moves back and forth from the server to the workstation, which is why right now AWdb works best on a wired LAN and a wireless network connection is usually too slow.