Error: Failed to parse block
at Object.BlockTemplate.nextBlob (/home/mylin/Pools/xdn-pool/lib/pool.js:122:23)
at Object.Miner.getJob (/home/mylin/Pools/xdn-pool/lib/pool.js:299:41)
at handleMinerMethod (/home/mylin/Pools/xdn-pool/lib/pool.js:494:28)
at handleMessage (/home/mylin/Pools/xdn-pool/lib/pool.js:624:13)
at Socket.socket.on.on.on.pushMessage (/home/mylin/Pools/xdn-pool/lib/pool.js:678:25)
at Socket.emit (events.js:95:17)
at Socket.(_stream_readable.js:765:14)
at Socket.emit (events.js:92:17)
at emitReadable_ (_stream_readable.js:427:10)
at emitReadable (_stream_readable.js:423:5)
2017-09-18 21:27:58 [master] Pool fork 1 died, spawning replacement worker...
i built the node from https://github.com/xdn-project/digitalnote
and the pool from https://github.com/xdn-project/cryptonote-universal-pool
im using ubuntu 16.04 (and i have other cryptonote coins pools running with no issues)
and pointers?