This is usually caused by one computer having had the licence updated, but then that new licence file hasn't been copied around to everyone else's computer.
If there is an installation on another PC that is working, the license.dat file can be copied from the working installation.
To do this:
On the computer with the working version, browse to: C:\Users\logged in users name\AppData\Local\VirtualStore\Program Files (x86)\Access Applications\FocalPoint Administrator.
If there is a file called license.dat here, skip to step 4.
If the location in step 1 does not exist, or there is no license.dat file there, then browse to the installation location, most commonly C:\Program Files (x86)\Access Applications\FocalPoint Administrator.
Copy the licence.dat file to a network location or memory stick.
On the computer with FocalPoint Administrator installed without the licence(s), paste the license.dat file into the new installation location, most commonly C:\Program Files (x86)\Access Applications\FocalPoint Administrator
The user should now be able to log in without an error.
If the user still can't log in:
On the computer with the new install, browse to C:\Users\logged in users name\AppData\Local\VirtualStore\Program Files (x86)\Access Applications\FocalPoint Administrator
Paste the licence.dat that was copied from a working machine, into this location as well
If there are still problems logging in, then please raise a new case and reference the title of this article.