Problem Uploading

Hi there. I have a Rokit SmartInventor board connected to arduino via USB on mac. I installed the correct drivers and was able to write and upload code successfully for a while. Now, when I go to Tools - Ports, It only shows /dev/cu.Bluetooth-Incoming-Port and not the port I used to use to upload code. I think what is happening is my mac is not recognizing the port. I've tried re-installing the drivers, restarting the SmartInventor board, shutting down and rebooting my mac, restarting arduino, and changing USB cables. Nothing works. Please help!