In your recent edits to "The Warriors of Kyoshi", they removed certain things from the page, such as categories and interwiki links. It's probable that it happened due to your use of the visual editor. Please be more mindful of your edits when using the visual editor, or use the source mode instead.
How did I remove categories, and if I'm not editing those specific ones? I try to make the edits careful, and I even both reread the category of the part I edit to see if something is wrong and look at the whole page, skimming to see if a category is gone from what I saw beforehand. I looked after doing this edit, and nothing seemed wrong, with all the other original categories.
I wasn't even trying to edit interwiki links, so I don't know how that happened.
It's probably a visual editor bug, which is why I suggested using the source editor instead. Here's your edit that removed those things. I personally don't like the visual editor at all, so I never use it, and the fact it has these bugs lower my opinion of it even more.
Try checking the following: go to Special:Preferences. Go to the "editing" tab. In the first section of the page, named "editing experience", the first available option is called "preferred editor", it's a drop-down menu. Which editor is selected to you? This is a Wikia-wide option, whatever you select here, it'll be used for you in every Wikia network wiki. If the visual editor is selected for you, you should probably change it to the source editor.