Your dongle is not recognized and the device manager marks the USB connection with a yellow exclamation mark? This means the the dongle driver is outdated.
Please download the latest MARX driver from this website: https://www.marx.com/en/support/downloads
Download the driver setup and install it. After that, the dongle will be recognized.
Alternatively, download and install the latest AppService to fix this issue: https://gmgcolor.com/support/software-download