Failed to get Lidar Data [YDLIDAR ERROR]: -1 Device Failed

[rashidrao902]

my lidar is working but when I run the imu launch file it gives following error:
(both of the lidar as well as imu separately working
I am using two YDlidar G6)
[ERROR] [1721637261.264193722]: Failed to get Lidar Data
timeout count: 1
[YDLIDAR ERROR]: -1 Device Block
[ERROR] [1721637261.538589526]: Failed to get Lidar Data
timeout count: 1
[YDLIDAR ERROR]: -1 Device Block
[ERROR] [1721637262.265065762]: Failed to get Lidar Data
timeout count: 2
[YDLIDAR ERROR]: -1 Device Block
[ERROR] [1721637262.539848223]: Failed to get Lidar Data
timeout count: 2
[YDLIDAR ERROR]: -1 Device Block
[ERROR] [1721637263.265173167]: Failed to get Lidar Data
[YDLIDAR ERROR]: -1 Device Block
[ERROR] [1721637263.539968063]: Failed to get Lidar Data
[YDLIDAR ERROR]: -1 Device Block
[ERROR] [1721637264.265287316]: Failed to get Lidar Data
[YDLIDAR ERROR]: -1 Device Failed
[ERROR] [1721637264.540209869]: Failed to get Lidar Data
[YDLIDAR ERROR]: -1 Device Block
[ERROR] [1721637265.265467050]: Failed to get Lidar Data
[YDLIDAR ERROR]: -1 Device Failed
[ERROR] [1721637265.540336814]: Failed to get Lidar Data
[YDLIDAR ERROR]: -1 Device Block
[ERROR] [1721637266.265583233]: Failed to get Lidar Data
[YDLIDAR ERROR]: -1 Device Failed
[ERROR] [1721637266.540458587]: Failed to get Lidar Data
[YDLIDAR ERROR]: -1 Device Block
[ERROR] [1721637267.265752866]: Failed to get Lidar Data
[YDLIDAR ERROR]: -1 Device Tremble
[ERROR] [1721637267.540586358]: Failed to get Lidar Data
[YDLIDAR ERROR]: -1 Device Tremble
[ERROR] [1721637268.266016937]: Failed to get Lidar Data