Please remove the wire to AREF.
Also add a 100nF (or a few) decoupling capacitors between VCC and GND.
Can you give more information ? You can't get I2C to work, but what does not work ? Did you try a I2C scanner ?
If you say it does not work, or has bad results or gives garbadge, then we don't know what to do with it. You have to investigate it and tell us more.