I have problem with lockdown and i need a help with it.

[greydon]

Hello @ChristianaSochi 

Thank you for contacting the Instructure Community. Can you elaborate on the problem? What isn't working exactly? What have you tried? As a good rule of thumb, you should try deleting it completely and reinstalling it - can you open it at least and navigate to Canvas? It could be an issue with the quiz  settings or even your browser or device. We'd need more specifics to assist you. You can also always contact Respondus directly for assistance:

https://web.respondus.com/contact/