My module hangs while loading area

[Legacy_SlithetheSorcerer]

               I was playing around with a module using the ProjectQ hackpacks and the CODI Sigil Interior & Exterior. At first everything was okay; I could easily run and test the module in NWN. However, now NWN hangs during the loading area screen at around 75%. The only thing I changed was importing the ERF files for both projects (and come to think of it, there may have been some incompatibilities) and adding a few door objects to the map. Does anyone have any suggestions?
               
               

               
            

[Legacy_SlithetheSorcerer]

               On further inspection, it always seems to crash whenever I add a door to the area prefixed by x2_ or x3_.
               
               

               
            

[Legacy_werelynx]

               rename the areas? or just make new areas and not use the erf ones