Here's a screenshot of the locked gate.
Thanks for the screenshot! Hopefully, I fixed the bug. I need to upload a new build of the game, though. That normally erases the player's saves. So, you'll need to temporarily copy and store your old saves outside the game. I'll upload the new build as soon as you give me your O.K. You can then copy your saves back in and test it, but have care to restart playing prior (!!) to the Cursed Elven City scene, perhaps from the Waterfalls that you navigated in the rowing boat. Let me know if the fix works. 