Leather renovation Super 5 Baccara

Good evening, in April I started the renovation of a Super 5 Baccara leather, I ordered the necessary products (Order No.: BDC201504/4316) and I was very satisfied with the result:

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However, the color being very dirty, I had to clean the front seats several times and I think that my leather cleaner product must have attacked the silky varnish or leather paint because the seats have become extremely sticky as if I had covered them with glue, they retain everything and stick to the clothes.

So I ordered again a black leather dye (Order NÂ: 7VX610939347416472B) and I would like to know with what I can clean the seats afterwards, moreover on one of the seats there are rather deep scratches with missing material and I would like to know if the leather paste will be sufficient knowing that the leather is not cracked or dechire, here is a picture after removing the paint and tearing the seat:

And also despite more than a week of applying foot oil, the seat in the middle remains quite hard, how could I fix it? Thank you in advance, cordially.