I took the index with the words, converted the variety to binary, added 3 zeros, calculated the sha256 digest, took the very first Component of the hexadecimal to transform it to binary, included 3 zeros to your 8 digits with the binary and got 00000010011 which interprets to 19 in https://socialmediainuk.com/story20561239/the-invalid-bip39-phrase-diaries