Settings crashing, can't download apps from Google Play

I have Gionee S5.5 and everytime I try to open settings it shows: "Application error;Unfortunately, Settings has stopped" it happens everytime I would try to open Battery or Developers option section, every other section works just perfectly. Also I can't download any app from google play store, and if I try its shows that download is paused. I tried everything I could from deleting google play store cache, settings cache, dalvik cache, factory reset. But it won't help... Maybe any of You guys have any ideas how could I fix this?

Best regards :o

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