Problem in Upeer Dorn's Deep Options

[Flinx]

Okay so here's the deal. I'm in Upper Dorn's Deep outside the puzzle room and when I click on the secret door all I get is it's locked. I tried Knock and what have you, no luck, I've killed all enemies, acquired I'm pretty sure all items, and can't seem to figure out what's up with it. The previous time I played NeJ it worked fine. The MODS I currently have installed other then NeJ are; Planarsphere MOD v2.6c, Planar Sphere Teleport, and The Longer Road v 1.5.1. As far as I can recall I had these and more mods installed last try and there were no problems with this area of the game. I have debated trying to CLUA my way into the puzzle room and leave but don't want to go area by area till I find which one it is. (Yes I'm lazy I'll admit this.) Can someone help me figure out how to unlock this darn door? I'd very much appreciate and thanks a lot.