"Creative Mode" Server API initialization exception.

Hi! Recently just made a server and added the Creative Mode plugin. Unfortunately there is an error during startup.

Code:

[11/29/19 09:41:35] [Server API] Verbose: TerrariaApi - Server v2.1.0.0 started.
[11/29/19 09:41:35] [Server API] Verbose:     Command line: "C:\Users\Anthony Ignacio\Downloads\tshock_4.3.26\TerrariaServer.exe"
[11/29/19 09:41:35] [Server API] Verbose:     OS: Microsoft Windows NT 6.2.9200.0 (64bit: True)
[11/29/19 09:41:35] [Server API] Verbose:     Mono: False
[11/29/19 09:41:35] [Server API] Info: Plugin TShock v4.3.26.0 (by The TShock Team) initiated.
[11/29/19 09:41:35] [Server API] Error: Startup aborted due to an exception in the Server API initialization:
System.InvalidOperationException: Plugin "Creative Mode" has thrown an exception during initialization. ---> System.IO.FileLoadException: Could not load file or assembly 'Newtonsoft.Json, Version=9.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)
   at CreativeMode.Config.ReadConfig()
   at CreativeMode.CreativeMode.Initialize()
   at TerrariaApi.Server.ServerApi.LoadPlugins()
   --- End of inner exception stack trace ---
   at TerrariaApi.Server.ServerApi.LoadPlugins()
   at TerrariaApi.Server.ServerApi.Initialize(String[] commandLineArgs, Main game)
   at TerrariaApi.Server.HookManager.InitialiseAPI()

Any and all help will be greatly appreciated. Thanks!