Settings won't work!!



I have the LG Optimus G e970 or AT&T.

One day, I wanted to open my settings and it said "Unfortunately, Settings has stopped". I uninstalled all my apps to see if one interfered with opening settings, but nothing changed. So I inevitably restored my phone to factory condition, and settings opened. But the same problem happened a few weeks later. But I don't want to restore again. What else can I do to fix this problem??