Android app crashes if i have save and load

i made an android blueprint app and, if i play in editor, everything works, load and save, no errors everything’s good.
But when i package for android, it crashes without any errors in logs.
I tested and if i delete the save & load everything works on android and in editor.
Even if i never call the load and save thing it still crashes on startup.
I dont have any errors in editor, and in the android logs.
Even if i never call the load and save events, it still crasehes on android, when i delete the entire events its working.

I tested some more, and i see if u just save a simple text, everything works.
It can be that it saves too many things at the same time or something like that?
I do have a LOT of variables to save