Adoptable levels missing.
 

So I wanted to add the last evolution of one of my adoptables and it said it was already at it's max level.
So I checked the images and it was until level 4 but I have 6 levels.

Now it is missing 2 levels..
I have no idea how to fix this, do I have to erase this adoptable and create it again?
This will make people lose the adoptable.

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EDIT:

Never mind I fixed it by deleting files in the database.

There's actually a setting somewhere in the admin area where you set the max level that adoptables can have.

I know, but whenever I wanted to add another level it said that it had lvl 1,2,3,4 and 6.
I was missing 5. Then later on I was missing 5 and 6.
Which I couldn't fix in the admin area.