All recent changes in MySQL have been automatically removed. Recently INSERTed or UPDATEd data is not available

I have been using MySQL for the last two months. I'm regularly INSERTing new records and UPDATEing old ones. But when I opened phpMyAdmin today, all of the changes which I've made in the 10 days have vanished. INSERTed data for the last 10 days is unavailable and The UPDATEs I have made to other records have also reverted to previous versions. The AUTO_INCREMENT field is still incrementing to the next number like nothing is DELETEd. I need my recently INSERTed data and my UPDATEs restored. More importantly perhaps, **why** is this happening? This problem happen between 5th to 7th January. This is the Error file of these days: Error Log