Why does my sanyo vpc 503 camera not work?

I have s digital camera and it does not work when you need the flash. The green light blinks red. When you take a picture without the flash, it works, but the picture is blurry. It stopped working out of nowhere. I tried new rechargeable batteries, but it still doesn't work. Please help!

some camera modes do not allow flash
check the flash in all the modes before you have it repaired