This usually means Windows is not properly initializing the USB camera at startup or after sleep.
Try this first:
Device Manager > Universal Serial Bus controllers > open each USB Root Hub and/or Generic USB Hub > Properties > Power Management > uncheck Allow the computer to turn off this device to save power.
Then restart the PC.
If it still happens, go to Device Manager > Cameras > right-click the camera > Uninstall device, then restart Windows.
If the problem continues, please tell me more:
Does it mainly happen after a shutdown or restart, if so, also try turning off Fast Startup:
Control Panel > Power Options > Choose what the power buttons do > Change settings that are currently unavailable > uncheck Turn on fast startup.
Does it matter which USB port you use? Is this Win11 or 10?