Accessed none trying to read property aicontroller

Development Programming & Scripting Blueprint
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1

Hello,
Please Help me. I want to multiply my AI every 3 seconds.
The Error is

344854-screenshot-1.png
344854-screenshot-1.png1920×1080 185 KB

The function causing error is

344855-screenshot-2.png
344855-screenshot-2.png1920×1080 415 KB

My Logic is

344856-screenshot-3.png
344856-screenshot-3.png1920×1080 347 KB

Please Help!!

2

By Above logic.My AI is not moving.It stands still on spawn position.