Error 2343

 Morning Duncan, so we are having a problem with opening other Hevacomp files on different PCs in the office so I am reinstalling the program using the files 1-5 shown in the picture. Once we get to 4, it fails with this error, any ideas? I read on another thread how to solve the files not opening and showing errors, hence my re-installing to make sure the PC's were all up to date with each other. 

Andy