Hi @TiffanyWid,

As Lockdown Browser is a 3rd party software application, I would suggest trying to contact Repondus, the makers of that application.  Users here in the Instructure Community can answer a lot of questions about Canvas LMS and other Instructure products, but 3rd party systems will be very hit or miss depending on whether anyone else has experience with those systems, and this sounds like a very technical issue that their support will hopefully be able to troubleshoot for you.

Good luck, hope you. are able to get this resolved quickly!

-Chris