Amazon milk frog

Hello!

My name is Mojca and i come from Slovenia. I have a problem with my little frog Trachycephalus resinifictrix named Frida. I bought her in Vienna exotica from a breeder. The size of terrarium is 30x20x30 (LxWxH). She has her own swimming pool, lots of wood to climb and vegetation cover, high humidity and constant temperature. The main food are crickets, occasionally i feed her mealworms pupa or adults, she won`t take mealworms larvae. I give her cricket every 2 or 3 days (it depends), usually 3-4 crickets, no larger than the width of her head. In addition, on every third feeding i give her vitamins for reptiles Reptolife (Tetra) and occasionally Reptocal (same company). I add fluid aquatize conditioner (company exo terra) to the water. The problem is that the last two weeks she does not accept food. She didn`t defecate for a week and a half and she looks like she lost little weight and she looks pale. Does anyone know what could be wrong? I am really lost and would really appriciate any suggestion..

Kind regards,

Mojca