Dazyy

So we are on day 3 of our new server and we had a few crashed on our last wipe the reason we wiped is because our server randomly crashed and then all the mod items where gone. So smithy and all the bulk items disappeared and all of the people's stuff that was in there was lost we checked the saves to see if we could go back but after the crash it came back up with no items so we don't know what has happened its the second time now so if anyone has any ideas if they could help me out would be appreciated. We just started hosting with survival servers just need a little help. we found a backup of 4 hours before the crash but we have no idea why its removing the mods and crashing Thanks Dazyy