This question is an exact duplicate of:
I just got some rep notifications while I was chatting on chat.SE. Thanks to this awesome script, I have a top bar in chat, so I see something like this:
Now, suspecting that something may be wrong with the script showing it in the chat rooms, I went to the main chat.SE site, and... saw this same error.
To be sure, I spun up an incognito tab, where I don't have any scripts running (because normally I have 20+). And... still shows broken:
Apparently, English Language & Usage is now Stack Overflow en Español, Literature is now Magento, Mythology & Folklore is Network Engineering... Science Fiction & Fantasy and Meta don't seem to have been affected.