try downloading from
Copy and paste link of the app from play store that you want.
And download and try reinstall it.
Or use This System Optimizer
that cannot be found on google play, download and install it manually.
This one has full features including clearing caches, clearing broken apk, network speed indicator, task killer, forbidding undesired app at start up for faster booting, checking phone info, updating apps, all in one widget, etc...
It is just 5.3 MB, just like a premium app.