Unable to connect the t265 camera

Hi, I had been using the t265 camera without any problems. But last week, when I tried using the camera as normal. It started getting undetected. So I run realsense-viewer, I got some error codes like below.

16/02 10:34:43,193 ERROR [140081893467904] (handle-libusb.h:51) failed to open usb interface: 0, error: RS2_USB_STATUS_ACCESS
16/02 10:34:43,193 ERROR [140082180372224] (sensor.cpp:523) acquire_power failed: failed to set power state
16/02 10:34:43,193 WARNING [140082180372224] (sensor.cpp:1110) Failed to add Backlight Compensation control for RGB Camera
16/02 10:34:43,193 ERROR [140081893467904] (handle-libusb.h:51) failed to open usb interface: 0, error: RS2_USB_STATUS_ACCESS
16/02 10:34:43,193 ERROR [140082180372224] (sensor.cpp:523) acquire_power failed: failed to set power state
16/02 10:34:43,193 WARNING [140082180372224] (sensor.cpp:1110) Failed to add Brightness control for RGB Camera
16/02 10:34:43,193 ERROR [140081893467904] (handle-libusb.h:51) failed to open usb interface: 0, error: RS2_USB_STATUS_ACCESS
16/02 10:34:43,193 ERROR [140082180372224] (sensor.cpp:523) acquire_power failed: failed to set power state
16/02 10:34:43,193 WARNING [140082180372224] (sensor.cpp:1110) Failed to add Contrast control for RGB Camera
16/02 10:34:43,193 ERROR [140081893467904] (handle-libusb.h:51) failed to open usb interface: 0, error: RS2_USB_STATUS_ACCESS
16/02 10:34:43,193 ERROR [140082180372224] (sensor.cpp:523) acquire_power failed: failed to set power state
16/02 10:34:43,193 WARNING [140082180372224] (sensor.cpp:1110) Failed to add Exposure control for RGB Camera
16/02 10:34:43,193 ERROR [140081893467904] (handle-libusb.h:51) failed to open usb interface: 0, error: RS2_USB_STATUS_ACCESS
16/02 10:34:43,193 ERROR [140082180372224] (sensor.cpp:523) acquire_power failed: failed to set power state
16/02 10:34:43,193 WARNING [140082180372224] (sensor.cpp:1110) Failed to add Gamma control for RGB Camera
16/02 10:34:43,193 ERROR [140081893467904] (handle-libusb.h:51) failed to open usb interface: 0, error: RS2_USB_STATUS_ACCESS
16/02 10:34:43,193 ERROR [140082180372224] (sensor.cpp:523) acquire_power failed: failed to set power state
16/02 10:34:43,193 WARNING [140082180372224] (sensor.cpp:1110) Failed to add Hue control for RGB Camera
16/02 10:34:43,193 ERROR [140081893467904] (handle-libusb.h:51) failed to open usb interface: 0, error: RS2_USB_STATUS_ACCESS
16/02 10:34:43,193 ERROR [140082180372224] (sensor.cpp:523) acquire_power failed: failed to set power state
16/02 10:34:43,194 WARNING [140082180372224] (sensor.cpp:1110) Failed to add Saturation control for RGB Camera
16/02 10:34:43,194 ERROR [140081893467904] (handle-libusb.h:51) failed to open usb interface: 0, error: RS2_USB_STATUS_ACCESS
16/02 10:34:43,194 ERROR [140082180372224] (sensor.cpp:523) acquire_power failed: failed to set power state
16/02 10:34:43,194 WARNING [140082180372224] (sensor.cpp:1110) Failed to add Sharpness control for RGB Camera
16/02 10:34:43,194 ERROR [140081893467904] (handle-libusb.h:51) failed to open usb interface: 0, error: RS2_USB_STATUS_ACCESS
16/02 10:34:43,194 ERROR [140082180372224] (sensor.cpp:523) acquire_power failed: failed to set power state
16/02 10:34:43,194 WARNING [140082180372224] (sensor.cpp:1110) Failed to add White Balance control for RGB Camera
16/02 10:34:43,194 ERROR [140081893467904] (handle-libusb.h:51) failed to open usb interface: 0, error: RS2_USB_STATUS_ACCESS
16/02 10:34:43,194 ERROR [140082180372224] (sensor.cpp:523) acquire_power failed: failed to set power state
16/02 10:34:43,194 WARNING [140082180372224] (sensor.cpp:1110) Failed to add Enable Auto Exposure control for RGB Camera
16/02 10:34:43,194 ERROR [140081893467904] (handle-libusb.h:51) failed to open usb interface: 0, error: RS2_USB_STATUS_ACCESS
16/02 10:34:43,194 ERROR [140082180372224] (sensor.cpp:523) acquire_power failed: failed to set power state
16/02 10:34:43,194 WARNING [140082180372224] (sensor.cpp:1110) Failed to add Enable Auto White Balance control for RGB Camera

I assume that this camera has serious problems. If it does, please let me know how to fix and handle this problem. I need your the quickest reply.