Hi Ami
From Server
go to this path in the server where you have installed sap b1
C:\Program Files\SAP\SAP Business One\Conf from this folder copy b1-local-machine and
now go to client system
Now go to the User system and go to path where you have installed client sap and go to conf folder and paste the file which ypu copied from server.
Or
On the Sap Icon right click and run as Administrator it will work
Regards
Jenny