I would guess this is more related to stress.

I would suggest the following to help reduce stress:
Cover three sides of the tank and remove any night lighting.
Ensure water is either chlorine free (bottled spring) or treated tap water.
Limit the times you enter the tank to only when changing water and adding or removing crickets.
Provide enough natural accents to allow for hiding, climbing, and perching above the substrate. Since your frog lives in trees, they are rarely found on the substrate and prefer to move from leaf to vine to branch to explore the tank.
Slowly remove covered sides over a few weeks to let them become accustomed to their surroundings.
Ensure the crickets provided are no longer than the width between the frogs eyes.
Monitor the frogs activity and weight. If your frog moves around at night in the dark and soaks or sits at the water dish edge, then he/she is probably doing fine.


You can also feed with a cricket bowl to keep track of how he/she is eating.