Turn your pedal off and leave it alone for a few hours and then try again.
Insert your card in you Mac slot reader. Delete the contents from your card (delete, not erase), empty your card’s Trash. Copy the firmware files to you AD card. Eject the card and insert it in your pedal. Use the power adapter that came with your pedal and plug it in.
If it still doesn’t work, you can try following the steps for a bricked pedal for the Mac at this link: Pedal does not power on
If it works, check the firmware version on the pedal under the About settings. Then place the card back in your Mac and use the BBM to Export - Project to SD card. Eject and with the power off to your pedal, insert card and plug in the PSU.
Finally, if this still does not work, reach out to support@singularsound.com