Pearl Harbor, did Japanese try to declare war before the attack?

I heard that Japanese diplomats messed up in transferring Japanese to English. I haven't study Pearl Harbor and its greatness, but is there any sources or proof about this?

Please don't go evil on me. I don't know much about Pearl Harbor and this is why im asking questions.
Update: I do not believe in conspiracy..hell no!

I've heard they declared state of war hours before the attack.
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