Meat
This is the radical for meat. What's meat-like about this? Think of a nice square slab of meat with some beautiful 人-shaped marbling lines in it. Seeing it now? Mmm, meat.
An update is needed before you can continue but you have more than one WaniKani tab open.
Finish up what ever you are doing on the other tab(s), then close them to continue.
The update will complete automatically once the other tab(s) are closed.