Hey there, thanks for reaching out. We see that your left controller isn't working, and the VR experience certainly can't be complete without controller functionality so we will do our best to help you find a viable solution.
Please try taking the batteries out and leaving them out for around 30 minutes. This will force a soft reboot of the controller and can fix the issue.
Furthermore, we have some questions that will help us further identify the issue:
Once these questions are answered, we will be able to better assist you.