Uploading From Device to BB Manager

My MacBook 10.7.5 will not recognize the pedal when I plug my device into computer using USB cable. The USB slot works fine with other devices. So this means I can’t upload the petal to BB Manager which makes the BB Manager useless. What’s up with this and what is the solution short of getting new computer as I have spend my money on the pedal :slight_smile: Need a fix