Trouble problem with UR22MK2

I have a following problem: my laptop MacOs BigSur ver11.2.1 would not recognise the sound card Steinberg ur22mk2.
When the card plugs in through USB, the USB indicator on the sound card flickers. When i try to install/reinstall the driver, there is an Error: «UR is not detected. Please check the connection and reboot this software».
The sound passes through the sound card, but the card doesn’t connect to the laptop.
What can it be? The USB cord is original by the way.