Crud. You are not the first to report this. This is an issue spesific to android. I fear that the game is using too much memory for the android to handle. If you reboot your phone and go straight to the game, does it work then?
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I checked for any system updates or such and restarted the phone. Unfortunately, when I went back to the game, the stat-exchange still does not work. I will check the memory as well.
I am willing to help you out any way I can for this game.
Edit: It takes up ~237 megabytes on my 128 gigabyte phone, but I also suck at tech so that could actually be a lot. I may just need to get rid of some of my photos and such.
Alright, here's what I found through replaying.
If you go through it from day 23 to day 25 all at once without closing out the app, it seems to work fine (as long as the stat-exchange doesn't come back).
I have a hypothesis that the reason it doesn't work if you close it out is because the secondary screen that opens up for the rod is saved in the background or something and the multiple screens break the game.