I believe the individual that created this wiki is no longer active. I certainly wasn't aware of any other pre-existing Wikia when I began making contributions to this. Personally, I certainly don't consider this wikia 'dead'. I know I still have plans on making contributions. It'd be lovely to have more participants, however.
I'd love to see the other wikia, too! It could be a great opportunity to combine efforts. Could you please post the link?
Check out your Admin Dashboard, which can by found by clicking "Admin" on the bottom toolbar -- it has links to all your new tools. Please let me know if you have any questions, and good luck with your new (old) wikia!