I have had a colibri lighter for about a year now. It is one of those with the clear reservoir tank. It has sort of a rounded look to it. Anyway, today I was getting ready to light up and I noticed a crack in the reservoir. The outside doesnt look or feel cracked, but there is a starburst type mark on it that is on the inside. There are also 3 little starburst marks above it. The large mark is about the size of your pinky nail, or a little smaller. What caused this? I dont remember dropping it last night, but I did use it a few times. What are my options here? Is it going to continue to crack? Can Colibri replace the reservoir? Is there any kind of warranty?