Hi pcambra,
I had 994 categories and the same problem. found your post. I commented out those sections and it fixed it like you said, but I too could not add categories.
I removed the comments on the first block only, saved, and uploaded. I can now add categories as well as properly view the categories.
Sometimes I have to add the category twice before it acknoledges my request, but it does work.
Can someone supply a permanent fix?
