Nevermind.................

How did you fix it cause im getting errors from colored chat as well? appreceiate any info/advice :)

Yup... not working. 

ColouredChat v2.2.87: Failed to call hook OnBetterChat(System.Collections.Generic.Dictionary`2[System.String,System.Object]):
System.Collections.Generic.KeyNotFoundException: The given key 'ChatChannel' was not present in the dictionary.
at System.Collections.Generic.Dictionary`2[TKey,TValue].get_Item (TKey key) [0x0001e] in <47fc8c70fa834cbf8141d7c1a7589125>:0
at Oxide.Plugins.ColouredChat.OnBetterChat (System.Collections.Generic.Dictionary`2[TKey,TValue] dict) [0x00017] in <cea56bdc377b49029d4c223f323edc8e>:0
at Oxide.Plugins.ColouredChat.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x0051a] in <cea56bdc377b49029d4c223f323edc8e>:0
at OxidePerfCounter.main.HookPerformance (Oxide.Core.Plugins.HookMethod method, System.Object[] args, Oxide.Plugins.CSharpPlugin __instance, System.Object& __result) [0x0009c] in <b3fa7a63aa764ffb9f048e13be62c298>:0​

Having this issue as well

Several chat features are not available to players.

Errors in console:

Failed to call hook 'OnBetterChat' on plugin 'ColouredChat v2.2.87' (KeyNotFoundException: The given key 'ChatChannel' was not present in the dictionary.) at System.Collections.Generic.Dictionary`2[TKey,TValue].get_Item (TKey key) [0x0001e] in <2161c9885dd04ff291b79db9349c4b9b>:0 at Oxide.Plugins.ColouredChat.OnBetterChat (System.Collections.Generic.Dictionary`2[TKey,TValue] dict) [0x00017] in :0 at Oxide.Plugins.ColouredChat.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x0051a] in :0 at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <122610edeac6402c8915b76845a2714f>:0 at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <18d4f19bbc844191b11ed9e69284d09b>:0 at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <18d4f19bbc844191b11ed9e69284d09b>:0

I issued the command to give a player a rainbow colored name and it didn't work. The message said they got it, but their name isn't rainbow colored.

nvmimdumb

Hey, this should be fixed in the latest Rust/Oxide update. Make sure to update your server to the latest version!

Unfortunately, its not fixed after all updates. Can someone look at this please, thanks