I looked at your chart. You are eating plenty of food to not be in 'starvation mode'. Is it possible you are overestimating the cals burned by exercise? Are you using the livestrong estimates, an exercise machine estimate, or a personal HRM estimate? While a personal HRM is the most accurate, its still only an equation that doesn't consider your personal metabolism. How old are you? I am 53 and will maintain but not lose on 1200 net cals so for me your numbers don't look surprising at all.

In addition to trying to eat less and burn more, I recommend increasing the ratio of protein to carbs in your diet. If you have any degree of impaired glucose tolerance that can make a huge difference. High protein/low carb foods are also more satisfying, so they let you feel satisfied with fewer calories, and also put you in a hormonal state that favors fat burning (glucagon>insulin).