This is my favourite kind of mistakes!
It shows you that someone knew enough to pick a word like CALIFORNIA, but for them, A and R looked the same, much like C and O. Something I totally saw with primary school kids learning our alphabet.
It's like us mistaking 手 and 毛, or 人 and 入, 目 and 日, etc. Looks idiotic when you're a native, but a fair mistake when you are a beginner.