How to revert to original language?

Hi there, I'm new to EasyBlog. I installed the package on a Joomla Ember [2.5.14] backend. The team I work with speaks Italian, I saw there was a translation available and I've installed it.
Being it incomplete, it caused many menu items to show poorly and it's very UNfriendly.

I tried to go back to the original language with no success.
I uninstalled the whole EasyBlog package, installed it from scratch and still no success.

Any suggestion please?