Changing Goals

I just reached/passed my first goal of losing about 24 pounds to put me under 150 pounds for the first time in years!

When I added my weight check-in this morning, MFP changed all my calorie and burn goals....but it changed my calorie goals from 1,510 to 2,250, and when I looked at the projection for how this would affect my weight, it was projecting a weight GAIN for me.

My goal is still to keep losing. Should I just change it back to 1,510? I just don't get why the site was upping my calories, and I don't want to do something wrong.