Final answer:
Erik Erikson's theory indicates a mid-life crisis can occur during middle adulthood, in the stage where the focus is on generativity versus stagnation.
Step-by-step explanation:
According to Erik Erikson, a mid-life crisis would most likely occur during the stage of middle adulthood, which spans from the 40s to the mid-60s. This phase is characterized by the psychosocial conflict of generativity versus stagnation, where the challenge lies in finding your life's work and contributing to the development of others, such as through parenting, mentoring, or volunteering. Those who fail to achieve generativity may experience stagnation, feeling little connection with others and lacking interest in productivity and self-improvement, which could trigger a mid-life crisis.