Could not initialize plugin 'NTeleportation v1.6.9' (JsonReaderException: After parsing a value an unexpected character was encountered: ". Path 'AdminTPBoundaries', line 11, position 122.)
  at Newtonsoft.Json.JsonTextReader.ParsePostValue () [0x00179] in <2ae3f091decd4989b3c4d466e6eb5985>:0 
  at Newtonsoft.Json.JsonTextReader.Read () [0x0005a] in <2ae3f091decd4989b3c4d466e6eb5985>:0 
  at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateDictionary (System.Collections.IDictionary dictionary, Newtonsoft.Json.JsonReader reader, Newtonsoft.Json.Serialization.JsonDictionaryContract contract, Newtonsoft.Json.Serialization.JsonProperty containerProperty, System.String id) [0x0028b] in <2ae3f091decd4989b3c4d466e6eb5985>:0 
  at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject (Newtonsoft.Json.JsonReader reader, System.Type objectType, Newtonsoft.Json.Serialization.JsonContract contract, Newtonsoft.Json.Serialization.JsonProperty member, Newtonsoft.Json.Serialization.JsonContainerContract containerContract, Newtonsoft.Json.Serialization.JsonProperty containerMember, System.Object existingValue) [0x002a8] in <2ae3f091decd4989b3c4d466e6eb5985>:0 
  at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal (Newtonsoft.Json.JsonReader reader, System.Type objectType, Newtonsoft.Json.Serialization.JsonContract contract, Newtonsoft.Json.Serialization.JsonProperty member, Newtonsoft.Json.Serialization.JsonContainerContract containerContract, Newtonsoft.Json.Serialization.JsonProperty containerMember, System.Object existingValue) [0x0006d] in <2ae3f091decd4989b3c4d466e6eb5985>:0 
  at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize (Newtonsoft.Json.JsonReader reader, System.Type objectType, System.Boolean checkAdditionalContent) [0x000d9] in <2ae3f091decd4989b3c4d466e6eb5985>:0 
  at Newtonsoft.Json.JsonSerializer.DeserializeInternal (Newtonsoft.Json.JsonReader reader, System.Type objectType) [0x00053] in <2ae3f091decd4989b3c4d466e6eb5985>:0 
  at Newtonsoft.Json.JsonSerializer.Deserialize (Newtonsoft.Json.JsonReader reader, System.Type objectType) [0x00000] in <2ae3f091decd4989b3c4d466e6eb5985>:0 
  at Newtonsoft.Json.JsonConvert.DeserializeObject (System.String value, System.Type type, Newtonsoft.Json.JsonSerializerSettings settings) [0x0002d] in <2ae3f091decd4989b3c4d466e6eb5985>:0 
  at Newtonsoft.Json.JsonConvert.DeserializeObject[T] (System.String value, Newtonsoft.Json.JsonSerializerSettings settings) [0x00000] in <2ae3f091decd4989b3c4d466e6eb5985>:0 
  at Newtonsoft.Json.JsonConvert.DeserializeObject[T] (System.String value) [0x00000] in <2ae3f091decd4989b3c4d466e6eb5985>:0 
  at Oxide.Core.Libraries.Lang.GetMessageFile (System.String plugin, System.String lang) [0x00067] in <50629aa0e75d4126b345d8d9d64da28d>:0 
  at Oxide.Core.Libraries.Lang.RegisterMessages (System.Collections.Generic.Dictionary`2[TKey,TValue] messages, Oxide.Core.Plugins.Plugin plugin, System.String lang) [0x00032] in <50629aa0e75d4126b345d8d9d64da28d>:0 
  at Oxide.Plugins.NTeleportation.LoadDefaultMessages () [0x01242] in <630f9cf551f6420a83bf295d317ffc09>:0 
  at Oxide.Core.Plugins.Plugin.HandleAddedToManager (Oxide.Core.Plugins.PluginManager manager) [0x0001d] in <50629aa0e75d4126b345d8d9d64da28d>:0 
  at Oxide.Core.Plugins.CSPlugin.HandleAddedToManager (Oxide.Core.Plugins.PluginManager manager) [0x00000] in <50629aa0e75d4126b345d8d9d64da28d>:0 
  at Oxide.Plugins.CSharpPlugin.HandleAddedToManager (Oxide.Core.Plugins.PluginManager manager) [0x00000] in :0 
  at Oxide.Plugins.RustPlugin.HandleAddedToManager (Oxide.Core.Plugins.PluginManager manager) [0x0028e] in :0 
  at Oxide.Core.Plugins.PluginManager.AddPlugin (Oxide.Core.Plugins.Plugin plugin) [0x00027] in <50629aa0e75d4126b345d8d9d64da28d>:0 
  at Oxide.Core.OxideMod.PluginLoaded (Oxide.Core.Plugins.Plugin plugin) [0x00035] in <50629aa0e75d4126b345d8d9d64da28d>:0 

Your oxide/lang file appears to be edited wrongly. You'll need to fix the error mentioned in the error or delete it and reload the plugin.