Sorry for the late response.
I got some feedback for one of the CCS developers. This can happen if for some reason some of the eclipse directories in CCSv5 become read-only or if files get modified/corrupted inside the .\ccsv5\eclipse/configuration directory. Later versions of CCSv5 guard against such issues better. We would normally recommend an upgrade but since you would like to stick to the existing version, you can try a reinstall of CCS
ki