I've just uploaded a new build. It's called "Sickness (Android)" and should download a file called "games.zetsubou.sickness-release.apk"
Can you download and install that? You shouldn't need to uninstall first. It should keep your existing save data if you just install it over the top of the existing installation.
It's built with a much newer version of the game engine and targets a recent version of Android. In my testing this version fixed the error you've screenshotted above.