Herelink video streaming issue ( Not found

I got problem with video transmission via HereLink. From the moment of the initial setup, the video was transferred regularly. When an error occurred, the devices were not updated, the UAV was on the table.
QGC version 3d0667e.
Herelink ver. 1.0.
Build: BRU01211104
Console output:

I have the same problem … The video stream stopped working, the green LED on the transmitter does not light up when the GoPro camera is connected (Although the display on the camera itself goes out, which indicates that the camera is responding to the connection to the connector)

Please tell me how to fix the problem.