due to an error, the server did not turn on after restart and spoiled the save file
error:
Error loading save (server/survivalhost.org/23232.215.sav)
(Filename: C:\buildslave\unity\build\Runtime/Export/Debug/Debug.bindings.h Line: 39)
OverflowException: Arithmetic operation resulted in an overflow.
at System.Linq.Enumerable.Sum[TSource] (System.Collections.Generic.IEnumerable`1[T] source, System.Func`2[T,TResult] selector) [0x00036] in <351e49e2a5bf4fd6beabb458ce2255f3>:0
at VendingMachine.RefreshSellOrderStockLevel (ItemDefinition itemDef) [0x0007f] in <622100108423464eb70d44bb94c0f765>:0
at VendingMachine.Load (BaseNetworkable+LoadInfo info) [0x0006e] in <622100108423464eb70d44bb94c0f765>:0
at InvisibleVendingMachine.Load (BaseNetworkable+LoadInfo info) [0x00000] in <622100108423464eb70d44bb94c0f765>:0
at SaveRestore.Load (System.String strFilename, System.Boolean allowOutOfDateSaves) [0x00470] in <622100108423464eb70d44bb94c0f765>:0
UnityEngine.DebugLogHandler:Internal_LogException(Exception, Object)
UnityEngine.DebugLogHandler:LogException(Exception, Object)
UnityEngine.Logger:LogException(Exception, Object)
UnityEngine.Debug:LogException(Exception)
SaveRestore:Load(String, Boolean)
ServerMgr:Initialize(Boolean, String, Boolean, Boolean)
<StartServer>d__19:MoveNext()
UnityEngine.SetupCoroutine:InvokeMoveNext(IEnumerator, IntPtr)
(Filename: <351e49e2a5bf4fd6beabb458ce2255f3> Line: 0)