When I try to create a topics feature in my game (this one, with the topic name of 'OOC,' if it matters), it doesn't work, and the console spits out some errors:
EDIT: ...I put this in the wrong forum. My bad.
EDIT 2: From some brief testing, this is specific neither to the linked game nor to the title 'OOC.'
EDIT 3: I also can't set an advertising date, or change the game's visibility setting. Basically the same error.