[AC Question]

so, i rooted my nokia x as it had many disadvantages, and acciendly installed a game on system app folder. when i wanted to remove it, it says its a system app cant be remove, but somehow uninstalled it via google play store,
but now my setting button dont work, it says ''system has stopped'' and turn black & few second later turn to normal
can i get my settings button back & how? or any app full alternative to setting ? that would be a big help, thanks