Using Player State

When i use reference to the Player State, the editor gives the following error: Accessed None trying to read property PlayerState from function: ‘ExecuteUbergraph_ThirdPersonCharacter’ from node: Print String in graph: EventGraph in object: ThirdPersonCharacter with description: Accessed None trying to read property PlayerState

This picture contains example of use Player State with default variable:

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When i try find my custom variable in the search box:

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