A Little Problem

So I love the game. Ive been playing for a while now and there are small problems here and there, but all in all Ive had a lot of good experiences. Now though I am having a problem with hatching a dragon. Ive spent a lot of gems on getting a terrible terror, but now when I try to incubate it to hatch, it just says "create pet fail". So I got another one to see if it had something to do with the one I had, but it still doesnt work. Now I have two useless eggs that I cannot hatch and do anything with.

Danellesm2 about School of Dragons, v2.5.0