Some Players always get kicked and some not
Each time we start the Event, some of the players can play and some of the players get kicked with the following errormessage...

xx.xx.xx.xx:xxxxx/xxxxxxxxxxxxxxxxxxxxxxxxx/Playername disconnecting: Exception (cs:88301): ArgumentOutOfRangeException: The added or subtracted value results in an un-representable DateTime.  Parameter name: t System.DateTime.op_Addition (System.DateTime d, System.TimeSpan t) (at <00000000000000000000000000000000>:0) EnvSync.Update () (at <00000000000000000000000000000000>:0)
Playername [xxxxxxxxxxxxxxxxxxxxx] died (Cold)
NullReferenceException: Object reference not set to an instance of an object
  at Item.MoveToContainer (ItemContainer newcontainer, System.Int32 iTargetPos, System.Boolean allowStack, System.Boolean ignoreStackLimit, BasePlayer sourcePlayer, System.Boolean allowSwap) [0x000ba] in <155db3dd563f46ad848cae87b8165786>:0
  at Oxide.Plugins.Slasher+SlasherEvent.GiveSlasherWeapon (Oxide.Plugins.EventManager+BaseEventPlayer eventPlayer) [0x0007c] in <5d48c0e2d3bf4904ad97ec92b2bb0faa>:0
  at Oxide.Plugins.Slasher+SlasherEvent.OnKitGiven (Oxide.Plugins.EventManager+BaseEventPlayer eventPlayer) [0x00075] in <5d48c0e2d3bf4904ad97ec92b2bb0faa>:0
  at Oxide.Plugins.Slasher+SlasherEvent+<ResetPlayers>d__29.MoveNext () [0x0013f] in <5d48c0e2d3bf4904ad97ec92b2bb0faa>:0
  at UnityEngine.SetupCoroutine.InvokeMoveNext (System.Collections.IEnumerator enumerator, System.IntPtr returnValueAddress) [0x00026] in <8aebd7627ade4efeae84aca54d1d32ad>:0

Exception while calling NextTick callback (NullReferenceException: )
  at (wrapper managed-to-native) UnityEngine.Component.get_transform(UnityEngine.Component)
  at BasePlayer.MovePosition (UnityEngine.Vector3 newPos) [0x00000] in <155db3dd563f46ad848cae87b8165786>:0
  at Oxide.Plugins.EventManager.MovePosition (BasePlayer player, UnityEngine.Vector3 destination, System.Boolean sleep) [0x00037] in <5d48c0e2d3bf4904ad97ec92b2bb0faa>:0
  at Oxide.Plugins.EventManager+RestoreData+<>c__DisplayClass6_0.<RestorePlayer>b__1 () [0x00011] in <5d48c0e2d3bf4904ad97ec92b2bb0faa>:0
  at Oxide.Core.OxideMod.OnFrame (System.Single delta) [0x00051] in <b76ec77c47d1449e92b2baab8603843d>:0
2678959[2678959] died (Generic)

Also got these Message(s):

Failed to call hook 'CanSpectateTarget' on plugin 'EventManager v4.0.6' (ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index)
  at System.Collections.Generic.List`1[T].get_Item (System.Int32 index) [0x00009] in <2161c9885dd04ff291b79db9349c4b9b>:0
  at Oxide.Plugins.EventManager+BaseEventPlayer.UpdateSpectateTarget () [0x00035] in <57e8d3b8ee7e447cab0bf94f731020ed>:0
  at Oxide.Plugins.EventManager.CanSpectateTarget (BasePlayer player, System.String name) [0x0001d] in <57e8d3b8ee7e447cab0bf94f731020ed>:0
  at Oxide.Plugins.EventManager.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x006c6] in <57e8d3b8ee7e447cab0bf94f731020ed>:0
  at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <cd9a02fd331347bd82d550bb1a9c8e9f>:0
  at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <b76ec77c47d1449e92b2baab8603843d>:0
  at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <b76ec77c47d1449e92b2baab8603843d>:0
Failed to call hook 'CanSpectateTarget' on plugin 'EventManager v4.0.6' (ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index)
  at System.Collections.Generic.List`1[T].get_Item (System.Int32 index) [0x00009] in <2161c9885dd04ff291b79db9349c4b9b>:0
  at Oxide.Plugins.EventManager+BaseEventPlayer.UpdateSpectateTarget () [0x00035] in <57e8d3b8ee7e447cab0bf94f731020ed>:0
  at Oxide.Plugins.EventManager.CanSpectateTarget (BasePlayer player, System.String name) [0x0001d] in <57e8d3b8ee7e447cab0bf94f731020ed>:0
  at Oxide.Plugins.EventManager.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x006c6] in <57e8d3b8ee7e447cab0bf94f731020ed>:0
  at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <cd9a02fd331347bd82d550bb1a9c8e9f>:0
  at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <b76ec77c47d1449e92b2baab8603843d>:0
  at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <b76ec77c47d1449e92b2baab8603843d>:0
Failed to call hook 'CanSpectateTarget' on plugin 'EventManager v4.0.6' (ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index)
  at System.Collections.Generic.List`1[T].get_Item (System.Int32 index) [0x00009] in <2161c9885dd04ff291b79db9349c4b9b>:0
  at Oxide.Plugins.EventManager+BaseEventPlayer.UpdateSpectateTarget () [0x00035] in <57e8d3b8ee7e447cab0bf94f731020ed>:0
  at Oxide.Plugins.EventManager.CanSpectateTarget (BasePlayer player, System.String name) [0x0001d] in <57e8d3b8ee7e447cab0bf94f731020ed>:0
  at Oxide.Plugins.EventManager.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x006c6] in <57e8d3b8ee7e447cab0bf94f731020ed>:0
  at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <cd9a02fd331347bd82d550bb1a9c8e9f>:0
  at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <b76ec77c47d1449e92b2baab8603843d>:0
  at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <b76ec77c47d1449e92b2baab8603843d>:0
Failed to call hook 'CanSpectateTarget' on plugin 'EventManager v4.0.6' (ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index)
  at System.Collections.Generic.List`1[T].get_Item (System.Int32 index) [0x00009] in <2161c9885dd04ff291b79db9349c4b9b>:0
  at Oxide.Plugins.EventManager+BaseEventPlayer.UpdateSpectateTarget () [0x00035] in <57e8d3b8ee7e447cab0bf94f731020ed>:0
  at Oxide.Plugins.EventManager.CanSpectateTarget (BasePlayer player, System.String name) [0x0001d] in <57e8d3b8ee7e447cab0bf94f731020ed>:0
  at Oxide.Plugins.EventManager.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x006c6] in <57e8d3b8ee7e447cab0bf94f731020ed>:0
  at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <cd9a02fd331347bd82d550bb1a9c8e9f>:0
  at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <b76ec77c47d1449e92b2baab8603843d>:0
  at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <b76ec77c47d1449e92b2baab8603843d>:0