Please help! My daughter has recently got me into Minecraft on PS3 and tonight our world started glitching. My cows are outside of their pen, the dogs have disappeared. Paintings have disappeared, skeletons go through walls, creepers run really fast, caves are fully lit up. I was killed by a zombie that I couldn't see, then all my items disappeared, but I still managed to pick them up.
Please tell me it can be fixed!