I am only guessing here based on me going and seeing the changelog for rooz boat. It has a special Gapps package by Kejar. So, I am guessing he either changed something about it or, it's now installing to data instead os system and when you install this they are coexisting and not working.
CHeck yourdata folder. If its in there delete it. If not, try going into the application manager in settings and clearing data (for that app) and then uninstalling it via the option in there unless its greyed out. If that's the case then go into the system folder and delete it.