As said above , most likely relocation stress.
It is OK to handfeed the new little dragon some crickets , he/she'll likely take 2 or 3 by hand (great way to bond with a little lizard too BTW) , and you can then offer the rest a few at a time in the enclosure for it to catch and eat. (once it's got the taste and discovers it's hungry).
Very easy to coax a little lizard to eat insects offered by hand (fingers), I simply place the little lizard on my chest or tummy with my hand gently restraining it, so it's facing me, have a few crickets ready before hand in a container, pull off one of the hopper legs , squash the head and squeeze out a little of goodness inside , then slip the fat end of the "drumstick" between the lips near the nose, the lizard will eat this and while it's munching on the drumstick place the head and gooy end of the cricket against it's lips (and gently prize the lower jaw / lip apart with the finger tip and slip some of the cricket in , the lizard will do the rest .
A couple of sessions of this and they get the hang of it and might even just about bight your finger off to get the cricket.
Good thing he/she's little so finger tip nips wont hurt (much).
Pretty soon you'll have a cricket eating machine who'll chase down and devour all crickets quick as a flash and will be insatiable.