More info can be found there, however the long and short of it is to delete the .hogg files in your pigg folder.
Location by default is C:\Users\Public\Games\Cryptic Studios\Star Trek Online\Live\piggs.
Delete these files (all with .hogg file extensions) and then re-open your launcher (it will detect the files are missing and re-download them). It seems to be working for other folks. I hope this helps.