Hi,
Welcome to our community! 
Have you already compared your code to the Lecture Project Changes which can be found in the Resources of this lecture?
If so, click the arrows to and from the ‘Dying’ animation state in the Animator. Check the transition conditions. The animation must not be allowed to get interrupted by any condition. And you probably don’t want to transition to another state, so there must not be any arrow coming from the ‘Dying’ state.
If nothing helps, please rewatch the video and compare your settings to Rick’s. Maybe there is a little difference between your project and his.
Please let me know if this helped and if you managed to solve the problem.
See also:
- Forum User Guides : How to apply code formatting within your post
- Forum User Guides : How to mark a topic as solved