Can't make the commands sethome and home add work. No messages in chat, nothing happens at al. All the permissions are given. Other functions of the plugin work fine.
The message in console:

Failed to call hook 'CommandSetHome' on plugin 'NTeleportation v1.3.6' (NullReferenceException: Object reference not set to an instance of an object)
at Oxide.Plugins.NTeleportation.CommandSetHome (Oxide.Core.Libraries.Covalence.IPlayer p, System.String command, System.String[] args) [0x0012e] in <10306bc2ad2749fa99253844d020b030>:0 7kb/s in, 38kb/s out
at Oxide.Plugins.NTeleportation.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x010fd] in <10306bc2ad2749fa99253844d020b030>:0
at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <3e46d2a997e94a3cb08cf065508cd483>:0
at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <1fe782f4b27a43ae85d29ebb2d56c007>:0
at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <1fe782f4b27a43ae85d29ebb2d56c007>:0​

And a part of the config:

{
  "Settings": {
    "Interrupt TP": {
      "Above Water": false,
      "Balloon": true,
      "Cargo Ship": false,
      "Cold": false,
      "Excavator": true,
      "Hot": false,
      "Hostile": false,
      "Hurt": true,
      "Lift": true,
      "Monument": false,
      "Mounted": true,
      "Oil Rig": false,
      "Safe Zone": false,
      "Swimming": true
    },
    "Block Teleport (NoEscape)": true,
    "Block Teleport (ZoneManager)": false,
    "Chat Name": "<color=red>Teleportation</color>: ",
    "Chat Steam64ID": 76561199056025689,
    "Check Boundaries On Teleport X Y Z": true,
    "Draw Sphere On Set Home": true,
    "Homes Enabled": true,
    "TPR Enabled": true,
    "Town Enabled": true,
    "Outpost Enabled": true,
    "Bandit Enabled": true,
    "Strict Foundation Check": false,
    "Cave Distance Small": 50.0,
    "Cave Distance Medium": 70.0,
    "Cave Distance Large": 110.0,
    "Default Monument Size": 50.0,
    "Minimum Temp": 0.0,
    "Maximum Temp": 40.0,
    "Blocked Items": {},
    "Bypass CMD": "pay",
    "Use Economics": false,
    "Use Server Rewards": false,
    "Wipe On Upgrade Or Change": true,
    "Auto Generate Outpost Location": true,
    "Auto Generate Bandit Location": true
  },
  "Admin": {
    "Announce Teleport To Target": false,
    "Usable By Admins": true,
    "Usable By Moderators": true,
    "Location Radius": 25,
    "Teleport Near Default Distance": 30
  },
  "Home": {
    "Homes Limit": 5,
    "VIP Homes Limits": {
      "nteleportation.vip": 5
    },
    "Cooldown": 600,
    "Countdown": 15,
    "Daily Limit": 30,
    "VIP Daily Limits": {
      "nteleportation.vip": 5
    },
    "VIP Cooldowns": {
      "nteleportation.vip": 5
    },
    "VIP Countdowns": {
      "nteleportation.vip": 5
    },
    "Location Radius": 25,
    "Force On Top Of Foundation": true,
    "Check Foundation For Owner": true,
    "Use Friends": true,
    "Use Clans": true,
    "Use Teams": true,
    "Usable Out Of Building Blocked": false,
    "Usable Into Building Blocked": false,
    "Allow Cupboard Owner When Building Blocked": false,
    "Allow Iceberg": true,
    "Allow Cave": true,
    "Allow Crafting": false,
    "Allow Above Foundation": true,
    "Check If Home Is Valid On Listhomes": false,
    "Pay": 0,
    "Bypass": 0
  },

 

check your data files to see if any are 4 bytes. if so, delete them.

All data files NTeleportation were deleted as there was no important information. And the lang files too. The plugin was reloaded and we have default data and lang files and still doesn't work.

Failed to call hook 'GetHomes' on plugin 'NTeleportation v1.3.6' (NullReferenceException: Object reference not set to an instance of an object)
at Oxide.Plugins.NTeleportation.GetHomes (System.Object playerObj) [0x0003d] in <8ddc51b9aa7148df8b50c2e58f260b9c>:0 708 ents, 24 slprs 23kb/s in, 120kb/s out
at Oxide.Plugins.NTeleportation.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x007c9] in <8ddc51b9aa7148df8b50c2e58f260b9c>:0
at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <3e46d2a997e94a3cb08cf065508cd483>:0
at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <1fe782f4b27a43ae85d29ebb2d56c007>:0
at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <1fe782f4b27a43ae85d29ebb2d56c007>:0​

And the same error in the console when somebody uses the chat command.

Failed to call hook 'CommandSetHome' on plugin 'NTeleportation v1.3.6' (NullReferenceException: Object reference not set to an instance of an object)
at Oxide.Plugins.NTeleportation.CommandSetHome (Oxide.Core.Libraries.Covalence.IPlayer p, System.String command, System.String[] args) [0x0012e] in <8ddc51b9aa7148df8b50c2e58f260b9c>:0 30kb/s in, 139kb/s out
at Oxide.Plugins.NTeleportation.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x010fd] in <8ddc51b9aa7148df8b50c2e58f260b9c>:0
at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <3e46d2a997e94a3cb08cf065508cd483>:0
at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <1fe782f4b27a43ae85d29ebb2d56c007>:0
at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <1fe782f4b27a43ae85d29ebb2d56c007>:0​