It can't be repaired. I don't know what you mean. There is noise on your floor. Do they treat it with wax? If so, some problems can be solved, can not play a fundamental role, and some problems are incomprehensible.

I don't know if you didn't make it clear, or what happened? I have been engaged in construction for 20 years, and I have never heard of a solid wood floor with a keel. I wonder if it's a new product. Technically, this practice is not established, but there is such a practice of repairing the sound.