"Error -310 Occurred While Attempting To Open C:/Users/Public/Public Documents/Essential Publishers/Data/Cases.dbf"
Error -310 is an error in the index file structure. You can go into Start>Computer (Windows Explorer) root-down to the Essential Forms Data folder and delete all the .mdx files by hand, then the program should rebuild them on launch.
*Note: If you’re not sure where the Essential Forms Data folder is located you can verify the path in the Essential Forms program under Configure>Data Directory. Note the path in the Select Data Directory window.