TimeZoneNotFoundException: Exception of type 'System.TimeZoneNotFoundException' was thrown

https://i.imgur.com/vAxEeFO.png
:<

 

Code:

(13:20:23) | Failed to call hook 'OnServerSave' on plugin 'DiscordMessages v1.6.1' (TimeZoneNotFoundException: Exception of type 'System.TimeZoneNotFoundException' was thrown.)
(13:20:24) | at System.TimeZoneInfo.get_Local () [0x00000] in <filename unknown>:0
at Newtonsoft.Json.Utilities.DateTimeUtils.GetUtcOffset (DateTime d) [0x00000] in <filename unknown>:0
at Newtonsoft.Json.Utilities.DateTimeUtils.WriteDateTimeString (System.Char[] chars, Int32 start, DateTime value, Nullable`1 offset, DateTimeKind kind, DateFormatHandling format) [0x00000] in <filename unknown>:0
at Newtonsoft.Json.JsonTextWriter.WriteValueToBuffer (DateTime value) [0x00000] in <filename unknown>:0
at Newtonsoft.Json.JsonTextWriter.WriteValue (DateTime value) [0x00000] in <filename unknown>:0
at Newtonsoft.Json.JsonWriter.WriteValue (Newtonsoft.Json.JsonWriter writer, PrimitiveTypeCode typeCode, System.Object value) [0x00000] in <filename unknown>:0
at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializePrimitive (Newtonsoft.Json.JsonWriter writer, System.Object value, Newtonsoft.Json.Serialization.JsonPrimitiveContract contract, Newtonsoft.Json.Serialization.JsonProperty member, Newtonsoft.Json.Serialization.JsonContainerContract containerContract, Newtonsoft.Json.Serialization.JsonProperty containerProperty) [0x00000] in <filename unknown>:0
at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeValue (Newtonsoft.Json.JsonWriter writer, System.Object value, Newtonsoft.Json.Serialization.JsonContract valueContract, Newtonsoft.Json.Serialization.JsonProperty member, Newtonsoft.Json.Serialization.JsonContainerContract containerContract, Newtonsoft.Json.Serialization.JsonProperty containerProperty) [0x00000] in <filename unknown>:0
at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeObject (Newtonsoft.Json.JsonWriter writer, System.Object value, Newtonsoft.Json.Serialization.JsonObjectContract contract, Newtonsoft.Json.Serialization.JsonProperty member, Newtonsoft.Json.Serialization.JsonContainerContract collectionContract, Newtonsoft.Json.Serialization.JsonProperty containerProperty) [0x00000] in <filename unknown>:0

I've updated both rust and oxide, unloaded and reloaded discordmessages. Cant get rid of it

 

https://i.imgur.com/U7N7EKo.png

already updated steam / rust , still the same or am i missing something else?