Too new to understand my error

So in the game I used the debug to give myself a pokemon, as well as the pokedex. Then when I went to look at my Pokémon in my party, I got an error message and the game crashed, now I can't playtest my game because whenever I try to load the game it gives me this message, then closes the playtest.
Also, I'm fairly new to Pokémon Essentials and RPGM, so please bare with me, I may not be able to understand exactly how to solve the problem right after I'm told how to fix it.

Have you downloaded the new version pack and placed those files in the pokémon essentials folder?

denziz said:

Have you downloaded the new version pack and placed those files in the pokémon essentials folder?

Click to expand...

I did actually, then it started working. I just downloaded it today so I'm still getting used to how it works, but thank you!