Small Json data request crash on Android

I’m working with fairly small data, (less than 100kb on each request). However, somehow in each request some information accumulates somewhere and after about 4 requests the game crashes, also the phone, then the game completely restarts. The only detail that I see that it fixes is restarting the level after 3 requests, , but it is likely that the larger the request grows, I will be left with 2 and then only 1 that is enough to generate the error. I use Varest.

Update: Something new, I detected that the error causes an overload of ram usage that blocks the phone for a few seconds and restarts the application. I still have no idea about the cause.