My answer was changed from community wiki to regular but I still do not see the rep.
What is the issue?
Reputation generally isn't calculated in real time, so all that was missing was triggering a recalculation of your reputation.
I've done that for you, so you should see a reputation increase corresponding to the 6 upvotes on that answer.
If you want to recalculate your own reputation, you can do so by using the button at the bottom of this page.