You should first try close and reopen the course, then log out then back in. If that does not work, we suggest that you verify that popup blockers have been disabled. If you are having audio problems and check the sound/volume settings on the player and your computer or mobile device. You might also try clearing your browserâ€s cache. If the course is still not working properly you should also try using a different web browser.\
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If you are still unable to continue with your course, we strongly recommend using a different mobile device or a laptop/desktop. Additionally, if you are on a computer which is attached to a network, itâ€s possible that a network firewall is preventing the course from working properly. If this is the case, we suggest taking the course outside of the respective network.