Pixhawk EKF is Red, LED Double flashing yellow

ArduCopter Copter 3.6
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I have a similar issue. Can’t have quadcopter return to launch due to red EKF. How do I make this go away? Please help

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https://drive.google.com/drive/folders/147r7suauNL9T9cXYHaPp8Ak0gshGdFHh?usp=sharing

Here’s my log data. Please help me someone.