Proximity Sensor not working

Hi, am facing problem in Obstacle avoidance.
Arducopter Version 4.5.7 Obstacle avoidance radar sensor is UAV - R21F using CAN 12-HUB.
Board is CubeOrangePlus and using for Hexacopter. It works fine with Arducopter 4.4.4 but having problem in Arducopter version 4.5.7

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Please tell me the Configuration for this.