With everyone closed out of the Essential Forms program (if it's on a network), right-click on the Essential Forms shortcut click "Properties" from the drop-down, in the "Shortcut" tab, put the cursor in the "Target" window outside of the last quote (if you have one) and put a (space) /b at the end of the "target". Click “Ok” and then “Apply.” For example (on mine) it looks like this: "C:\Program Files (x86)\CEB\Essential Forms\EFWin32.exe" /b
Launch the program once in that mode (with the command line switch /b) and then close the program and right-click on the Essential Forms shortcut, click "Properties" from the drop-down, in the "Shortcut" tab, in the "Target" window delete the /b at the end of the "target". Click “Ok” and “Apply.”
Note: The program attempts to pack and reindex the databases on program launch. If another user is already in the program (or if the program thinks another user is in there), it can't pack and reindex because the databases are presumed open. So if everybody's out of the program, the next user to open it (if they have the switch or the configuration setting in place) will perform the pack and reindex.
If everybody's networked to the same database, only one user needs to successfully perform the pack and reindex in order to fix the problem.