why is all my apps do not have English keyboard

[AC Question]

I downloaded a Clean Master app and it did some changes to my phone. Then, I discovered that the English language disappeared from the keyboard in all my apps like Facebook, Whatsapp, S Note, all of them.
and I don't have Arabic language in the messages keyboard.
How can I fix this?

 

[B. Diddy]

Welcome to Android Central! Clean Master and everything else by Cheetah Mobile are always highly suspect in my opinion (and many others share this view on this forum). Uninstall it immediately.