What is the logout link extension? I'm not familiar with that, which makes it a bit more difficult to understand what issue you're having or how to fix it.
If you're simply looking to make the logout button immediately logout the user, you can do that with the SCLogin module already. For more information, see our
Common Support Questions
guide. Specifically, "How can I add direct links to Logout in the user menu?"
I hope that helps,
Alex