Whites Tree Frog Please Help

[FrogLoving17]

Hi FF! My Whites Tree Frog Mr.Jelly has been doing good except for one thing. I am not sure if this is a probablem but tonight as I was spot cleaning the cage I found some of his poop, (sorry this is the gross part) but in his droppings I found some parts of cricket. Like you could tell it was a cricket, I am pretty sure it was part of the crickets wings. Is this normal for them not to diegiest their food? I am really worried of this is like a sign that he is not doing well;(