I can't remember. (Monty x animatronic! Reader.)

Maya is a security guard, working at the pizza plex. She also gives the animatronics updates when they need them. She gets along with all of the animatronics well. That is until one night she disappeared, a week later here comes a new animatronic. Freddy, Monty, Bonnie and foxy, don't warm up to her easily, trying to cope, over the disappearance of there friend. We're did this new animatronic come from? Is it a coincidence That there's a new animatronic as soon as the night guard goes missing? Is this a cover up?