Shortly after banana Barbera got her powers and was fired, she wanted revenge on her former boss, so she created the void to trap him in there. She was unsuccessful, but she trapped other things here. One day, she lost control of the void. she tried to regain control, which is why she kept painting static in the future. this made the void angry, so it destroyed Elmore at the end of the inquisition.
To be continued in the movie...