Can't Unistall OLD Adobe programs, MAC?

"Localized files could not be loaded. Please reinstall this application to solve the problem." Error 11

OS X Yosemite 10.10.5

Our work computer has an issue with Adobe 2015 programs no longer opening and can't find a way to just get them off. We've tried to install CC apps since on the the MAC and it won't allow it because of the old programs on there, which aren't even working and we just get that error message. 

Is it because the programs were installed with a disk? The original disks can't be located at this time. I've already tried the cleaner tool and a former worker resorted to throwing the icons in the trash but they are still in launchpad. I decided to bring them back to the desktop. All this happened before I had access to this computer so I'm not sure of all that was done and why it's like this.