What can I do to not lose the data ?
I am facing the same issue. Actually i have setted up the classic synchronisation of the testnode(jungle testnet). Blocks are receiving from the start. so it was consuming more time and i left the system to sync but the system got turned off when i tried to restart it from where i lefted it showed some kind of no existing state and fork databse error. so i tried to settup the node using snapshot (latest) but it didnt worked too. i have used the replay blocks plugin . not worked . please help..