Hey,
that is too much D3 and calcium according to me.
Also, which preys do you provide ?

At 4 months old, I should feed 2 to 3 times a week with Dubia roaches and/or nightcrawlers and/or locusts and/or crickets at each meal. You can give a dead mice (Size according to your frog), one per month or one every other month.
I should dust only one prey with calcium + D3 one week, then the week after only calcium and multivitamin.
Too much vitamin can be worst than vitamin carency and you frog is no more a juvenile.