Errors in Sahih Bukhari..?

While I was looking through the amazing work you guys have made to make it easier for people to read hadiths and Quran, I realized Your Sahih Bukhari contains 7563..? Sahih Bukhari contains 7,275 hadith. That's one, second, your Sahih Bukhari lacks 4 chapters which are Prayer Hall (Sutra), Characteristics of Prayer, Tax (Zakat ul Fitr), and Disbelievers (war). And contains chapters that are not supposed to be on the list which are Virtues of Prayer at Masjid Makkah and Madinah, Forgetfulness in Prayer, Virtues of the Night of Qadr, Shuf'a, Kafalah, Khusoomaat, Makaatib, and Jizyah and Mawaada'ah. Will someone mind explaining this, please?