Can we try some debugging -
Add this line at line 338 of index.js
`
function takeBlockHexTransactionsAndPutThemInTheDB(hex) {
console.log(hex + "\n");
var block = bitcoinJs.
test code
`
function takeBlockHexTransactionsAndPutThemInTheDB(hex) {
console.log(hex + "\n");
var block = bitcoinJs.Block.fromHex(hex);`
