Adding on to the guy above me;
Karmacc I have no idea how Pokemon Essentials works and maybe I'm vastly overestimating it, but is it possible to have it do stuff like some games do when there's new updates and you go through a whole option choices of;
Did you fuck XXX -> Did you treat XXX with love/lust -> etc etc
To register/acknowledge what you did in previous versions instead of having to replay all those choices to get to the new content.
Or if none of that is possible maybe just have some Mystery Gift "cheats". Like 99x Max Repel to skip all wild Pokemon battles to just speedrun the story/choices to current update/version. And an amount of Rare Candies to get all your Pokemon leveled to maybe just a bit weaker than the current versions content requires.
Either options if doable would probably help with a lot of bugs appearing from people using saves from the first release or avoid them using Cheat Engine to muck up the game.