Hello.
The plugin has a problem with custom maps

NullReferenceException: Object reference not set to an instance of an object
at Oxide.Plugins.Vanish+VanishPositionUpdate.OnDestroy () [0x0002e] in <be60d87173bf4d9cb14e4d739e6f527a>:0

(23:12:01) | Failed to initialize plugin 'Vanish v1.6.9' (NullReferenceException: Object reference not set to an instance of an object)

at Oxide.Plugins.Vanish.LoadData () [0x00028] in <9b7e89d33b7f4df3beb1184a17db8193>:0

at Oxide.Plugins.Vanish.Loaded () [0x0001a] in <9b7e89d33b7f4df3beb1184a17db8193>:0

at Oxide.Plugins.Vanish.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x0009c] in <9b7e89d33b7f4df3beb1184a17db8193>:0

at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <d431e37658ba4727b7490299d12dfc44>:0

at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <157a94ee66ab4a7991faecd1eb84be3b>:0

at Oxide.Plugins.CSharpPlugin.HandleAddedToManager (Oxide.Core.Plugins.PluginManager manager) [0x0006e] in <d431e37658ba4727b7490299d12dfc44>:0

(23:12:01) | Unloaded plugin Vanish v1.6.9 by Whispers88

Error while compiling: Vanish.cs(451,60): error CS0229: Ambiguity between `BasePlayer.IPlayer' and `BasePlayer.IPlayer'

Failed to initialize plugin 'Vanish v1.6.9' (NullReferenceException: Object reference not set to an instance of an object)

Vanish was compiled successfully in 2767ms
[Vanish] Configuration changes saved to Vanish.json
Failed to initialize plugin 'Vanish v1.6.9' (NullReferenceException: Object reference not set to an instance of an object)
at Oxide.Game.Rust.Libraries.Covalence.RustCommandSystem.CanOverrideCommand (System.String command) [0x00079] in <70f779719a314ddfa6e1c6ab1b162bab>:0
at Oxide.Game.Rust.Libraries.Covalence.RustCommandSystem.RegisterCommand (System.String command, Oxide.Core.Plugins.Plugin plugin, Oxide.Core.Libraries.Covalence.CommandCallback callback) [0x000bb] in <70f779719a314ddfa6e1c6ab1b162bab>:0
at Oxide.Core.Libraries.Covalence.Covalence.RegisterCommand (System.String command, Oxide.Core.Plugins.Plugin plugin, Oxide.Core.Libraries.Covalence.CommandCallback callback) [0x0000a] in <157a94ee66ab4a7991faecd1eb84be3b>:0
at Oxide.Core.Plugins.Plugin.AddCovalenceCommand (System.String[] commands, System.String callback, System.String[] perms) [0x0003f] in <157a94ee66ab4a7991faecd1eb84be3b>:0
at Oxide.Core.Plugins.Plugin.AddCovalenceCommand (System.String command, System.String callback, System.String perm) [0x00012] in <157a94ee66ab4a7991faecd1eb84be3b>:0
at Oxide.Plugins.Vanish.AddLocalizedCommand (System.String command) [0x00071] in <a01b10b19aab4416b50ef9f563c5f46d>:0
at Oxide.Plugins.Vanish.Init () [0x0000c] in <a01b10b19aab4416b50ef9f563c5f46d>:0
at Oxide.Plugins.Vanish.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x000fb] in <a01b10b19aab4416b50ef9f563c5f46d>:0
at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <d431e37658ba4727b7490299d12dfc44>:0
at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <157a94ee66ab4a7991faecd1eb84be3b>:0
at Oxide.Core.Plugins.CSPlugin.HandleAddedToManager (Oxide.Core.Plugins.PluginManager manager) [0x00043] in <157a94ee66ab4a7991faecd1eb84be3b>:0
Unloaded plugin Vanish v1.6.9 by Whispers88
No previous version to rollback plugin: Vanish

When i woke up i had a similar problem to what is discussed previously, fresh instal yielded that result

Merged post

upon further review, the problem seems to lie with oxide for me

same error it is not loading

Vanish was compiled successfully in 4762ms
Failed to initialize plugin 'Vanish v1.6.9' (NullReferenceException: Object reference not set to an instance of an object)
at Oxide.Plugins.Vanish.LoadData () [0x00028] in <11fc60a0cb474a389f97c65b78c70e87>:0
at Oxide.Plugins.Vanish.Loaded () [0x0001a] in <11fc60a0cb474a389f97c65b78c70e87>:0 0b/s in, 0b/s out
at Oxide.Plugins.Vanish.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x0009c] in <11fc60a0cb474a389f97c65b78c70e87>:0
at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <23ba99f131254889867c71f0bd137b1d>:0
at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <157a94ee66ab4a7991faecd1eb84be3b>:0
at Oxide.Plugins.CSharpPlugin.HandleAddedToManager (Oxide.Core.Plugins.PluginManager manager) [0x0006e] in <23ba99f131254889867c71f0bd137b1d>:0
Unloaded plugin Vanish v1.6.9 by Whispers88
No previous version to rollback plugin: Vanish

08:40 [Info] Unloaded plugin Vanish v1.6.8 by Whispers88
08:40 [Warning] [Vanish] Updating image Icon URL
08:40 [Warning] [Vanish] Configuration changes saved to Vanish.json
08:40 [Error] Failed to initialize plugin 'Vanish v1.7.0' (NullReferenceException: Object reference not set to an instance of an object)
at Oxide.Plugins.Vanish.LoadData () [0x00028] in <952f520cef4e4242961bf8d76531fbea>:0
at Oxide.Plugins.Vanish.Loaded () [0x0001a] in <952f520cef4e4242961bf8d76531fbea>:0
at Oxide.Plugins.Vanish.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x0009c] in <952f520cef4e4242961bf8d76531fbea>:0
at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <23ba99f131254889867c71f0bd137b1d>:0
at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <157a94ee66ab4a7991faecd1eb84be3b>:0
at Oxide.Plugins.CSharpPlugin.HandleAddedToManager (Oxide.Core.Plugins.PluginManager manager) [0x0006e] in <23ba99f131254889867c71f0bd137b1d>:0
08:40 [Info] Unloaded plugin Vanish v1.7.0 by Whispers88
08:40 [Info] Rolling back plugin to last good version: Vanish
08:40 [Info] Loaded plugin Vanish v1.6.8 by Whispers88
08:41 [Info] [Scientist Names] 4893444 renamed to Dr. Q. Bowers