Inside finish is peeling off
No, if the cavity metal of the oven is chipped or charred, it will have to be sanded smooth and clean and dried thoroughly.
Then you can apply some high-temperature appliance paint, available from places like Wal-Mart, Lowe's or Builder's Square.
Otherwise, you can have rust and arcing, which can be messy.
We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.