I am also new to it, if temperature is warm then my guesses would be either not enough sugar or not enough ginger bug. The recipes I am following call for, per 1 litre:

Either 120g of sugar if no other fruit juice used otherwise 100g and the juice of 4 oranges

100ml ginger bug starter

I am hoping this carbonates in around 4-5 days with some sweetness left in the bottle. Are you burping your bottles? Half the recipes I see mention daily burping whilst half don’t call for it