Recently I made an app a system app with Lucky Patcher to change stuff in the apk file.
I couldn't update it (not sure why), so I tried uninstalling it. Didn't really work.

Basically, I'm looking for a way to completely remove the app, because in play store it says I have it, and in apps folder, it says I have it too.
But not in settings or any 3rd party software like Titanium Backup.

How do I get rid of it so I can reinstall it.
I tried downloading it as an apk, didn't work.
I really don't know what to do.