I took the index with the words, converted the number to binary, additional 3 zeros, calculated the sha256 digest, took the main A part of the hexadecimal to convert it to binary, additional three zeros to the 8 digits of your binary and bought 00000010011 which interprets to 19 in https://scrapbookmarket.com/story18810275/invalid-bip39-phrase-things-to-know-before-you-buy