Hi Jacquelyn, Thanks for contacting us and sorry that you’re experiencing this issue. A “Plug-in Failure” message means that there was a problem with Adobe Flash, which is what Ribbet requires in order to run. To resolve this, simply close down your web browser completely and then re-launch Ribbet. This will restart Flash, and should fix your issue.
If you continue to have a problem, please contact us here so that we can help you solve it one-on-one.