Regurges sometimes happen because temps are too low... but if they're too high it might happen, as well.

Make sure you keep the snake in a quiet area, where it's not going to be stressed out. I'd not handle it for a week or two. Same goes for feeding. One of my little boys regurged... I put him in a shoebox cage in a dark, quiet space for two weeks, no handling, no feeding. He ate just fine and hasn't regurged since.

The most common cause of death from a regurge is attempting to feed again soon after.