fail compiling

Failed to call hook 'OnServerInitialized' on plugin 'Space v1.2.8' (NullReferenceException: Object reference not set to an instance of an object)
  at Oxide.Plugins.Space+NpcManager.CheckNPCSpawn () [0x00000] in <8de3c78529194b65ae301ec9c6408ebb>:0 
  at Oxide.Plugins.Space.PostLoadCheck () [0x00000] in <8de3c78529194b65ae301ec9c6408ebb>:0 
  at Oxide.Plugins.Space.OnServerInitialized () [0x0001e] in <8de3c78529194b65ae301ec9c6408ebb>:0 
  at Oxide.Plugins.Space.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x0028d] in <8de3c78529194b65ae301ec9c6408ebb>:0 
  at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in :0 
  at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in :0 
  at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in :0 

I try to restart server and have again same issue
Cant use any command in game or sv console dont work
can help me to make work?

Are you uploaded data files? 

Changed Status from Pending to Work in Progress

iAfter reinstalling the data file, it worked fine!
 

Changed Status from Work in Progress to Closed