How to fix the error when assigning a new state?

Question

React

Hello! I'm at the stage of learning react, so I try to complete all sorts of tasks. So, one of them is a list of contacts with a search string. When interacting with the search string, the list of contacts is filtered.
The problem I encountered:
screenshot.su/show.php?img=18aab37badca6fc33c963ac...
Code:
https://jsfiddle.net/NooNoo1488/ru96ednv/
Tell me how to fix the error?

Answer 1

https://codesandbox.io/s/w7r2731458