Anyone know why this block-chain pauses for over an hour?  I expect 2 to 10 minutes.  From http://vivo.explorerz.top:3003/:

Block     Timestamp
235847  9th Aug 2018 12:53:39
235848  9th Aug 2018 14:18:36

235920  9th Aug 2018 15:15:12
235921  9th Aug 2018 16:28:20

236002  9th Aug 2018 18:16:46
236003  9th Aug 2018 18:44:37

236186  10th Aug 2018 00:47:46
236187