Summary:
Someone has been mining SOCC on a private network since block 4964. When the official chain was at height 5147 they released a longer chain that was about 7300+ height causing a reorg och the chain (REORGANIZE). This caused the 183 blocks that had been found since block 4964 to be rolled back (orphaned, -1). This can be seen in the debug.log below:
2017-07-21 16:46:29 SetBestChain: new best=bc6e368398fca1b3964b74749f5b72844136d79045fe286755c0536f9003a2dd height=5147 log2_work=52.822704 tx=9028 date=2017-07-21 16:45:36 progress=1.000000
2017-07-22 15:07:21 REORGANIZE: Disconnect 183 blocks; 0cb951727534c9071b15d7006b607685604ae944c45e9992b3a54781c2b25fd1..
2017-07-22 15:07:21 REORGANIZE: Connect 2236 blocks; ..9ef55f32c75070247f8d59fa484fa5af2aa39296becd68310fd7e5499079e8c1
I made a clone of the SOCC source code and added some checkpoints from the original chain:
https://github.com/novaexchange/SOCCLater we managed to get two nodes to sync back on the original chain using the modified wallet with checkpoints.
Anyone can now get connected to the original chain using the modified wallet above and adding the following node:
addnode=217.175.119.126:18645
Once the mining catches up all nodes will automatically be "reorged" back to the original chain.