AEG Santo 3274 - Not cooling or freezing?

Hi, im hoping someone can help me.

My AEG Santo 3274 Fridge Freezer has packed up on me. Its been playing up for a few weeks/months now and it seems its given up. It kept on freezing my fridge produce so i defrosted 2 weeks ago and it seemed to be ok. On returning this weekend gone i opened it to find it room temperature and freezer off.

Does anyone have any ideas.....im also broke at the moment so cant afford a replacement or a hefty repair bill.

Any help will be greatly appreciated.

Thanks
Greg