I understand the frustration and it really does suck. The Android version of the game got too large which some phones don't like. Unfortunately chances are high this Android port is as good as it's going to get.
I wish I could be of more help but I'm not an expert on the subject thus I'm not sure why it's not properly installing.
Aside from deleting all the old LTA game files and making sure you have enough space: https://www.androidauthority.com/free-storage-space-android-869799/
It's the only possible solution that I'm aware of. My sincere apologies.
Viewing post in Lewd Town Adventures 1.0 - The final update - Out now! comments
It's something I have very little control over since I'm not the java SDK/Renpy developer that's used to make Android games.
Renpy updated their version today though, there's a chance this solves the game not working on certain devices.
I'll re-upload/rebuild the game for all versions within a couple of days + I'll run some tests on my very basic phone that runs android 11 and will run it on various virtual devices as well. Fingers crossed.