I was able to repair the bug that disabled the Heal ability, so you'll be able to pick up where you left off by re-downloading the official game file, replacing the old files, and starting your game again as usual in JoiPlay.

Unless you'd rather just restart the game, it's imperative you REPLACE the source files rather than delete the old ones so that you don't lose your save! Your phone will likely save your zip file as a copy rather than replace the existing file. In that case open the new extracted folder, select all contents, and just bulk move to your old folder to overwrite the files manually. Once you start up JoiPlay again your game will be updated!

As always, this version is still in Beta so be sure to keep multiple save locations in case you encounter bugs.