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That looks like it was quite a nasty fall, but don't worry, the damage looks purely cosmetic and the plant will bouce back. It'll just be ugly for a couple of years. It doesn't seem like the crown of the leaf is affected (does the center of the plant feel wobbly/crushed?) and the keikis look alright. I'd just keep caring for it normally and it should recover fine, unless there's non obvious damage.