I flashed the stock kernel, and then restarted, and Wifi worked. Then I flashed Ziggy's kernel using Con247's method, and restarted, and got the error again. Trying again, but I'm gonna flash Ziggy's kernel using adb, and see what happens then.
UPDATE: Well I don't know what the deal is, but no matter how I flash Ziggy's kernel on this ROM, I get that Wifi error. As soon as I flash the stock kernel, Wifi comes back. Ideas?