Why did my snake regurgitate?

[AcidicAngel666]

Is the light on a Dimming Thermostat? If not the temps may be too hot or irregular.

As for the regurgitating - It could be a number of things.
Temps,
Prey too big(what are you feeding, how big is the snake?)
Fed too often(how often are you feeding it?)
Stress,
Swallowed substrate.

When a snake regurgitates you need to allow at least 10 days for the stomach acids to settle and the stomach lining to repair itself before trying to feed again so the second regurgitation was because you fed it too soon. Wait until the 10th January to feed again at the earliest and if it still regurgitates then there is something clearly wrong and I would recommend a visit to a reptile vet.