已解决 请问Linux服务器如下报错原因

[半小时]

日志如下。2核4G服务器，内存我看了还绰绰有余，服务期内没发生什么特别的事，玩家仅2人在挖石头。然后就突然闪退，显示如下日志后服务器关闭。求助原因

  at Terraria.IO.WorldFile+<>c__DisplayClass57_0.<SaveWorld>b__0 () [0x00000] in <b998d50b13c541e38cc44446c2f4660e>:0
  at Terraria.Utilities.FileUtilities.ProtectedInvoke (System.Action action) [0x00016] in <b998d50b13c541e38cc44446c2f4660e>:0
  at Terraria.IO.WorldFile.SaveWorld (System.Boolean useCloudSaving, System.Boolean resetTime) [0x00066] in <b998d50b13c541e38cc44446c2f4660e>:0
  at Terraria.IO.WorldFile.SaveWorld () [0x00017] in <b998d50b13c541e38cc44446c2f4660e>:0
  at Terraria.WorldGen.saveAndPlayCallBack (System.Object threadContext) [0x00000] in <b998d50b13c541e38cc44446c2f4660e>:0
  at System.Threading.QueueUserWorkItemCallback.WaitCallback_Context (System.Object state) [0x00007] in <d1664be62cd44600bbd25f7afa292479>:0
  at System.Threading.ExecutionContext.RunInternal (System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, System.Object state, System.Boolean preserveSyncCtx) [0x00071] in <d1664be62cd44600bbd25f7afa292479>:0
  at System.Threading.ExecutionContext.Run (System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, System.Object state, System.Boolean preserveSyncCtx) [0x00000] in <d1664be62cd44600bbd25f7afa292479>:0
  at System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem () [0x00021] in <d1664be62cd44600bbd25f7afa292479>:0
  at System.Threading.ThreadPoolWorkQueue.Dispatch () [0x00074] in <d1664be62cd44600bbd25f7afa292479>:0
  at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback () [0x00000] in <d1664be62cd44600bbd25f7afa292479>:0

 

[半小时]

已解决，我导入地图文件的时候忘记同步修改文件权限了，导致服务器自动存档时无法写入地图文件报错闪退。