The server host had to do updates on their side this morning. After the server came backup I got an error. I then noticed there was an Oxide update, I updated the server and it's still giving this message. Everything was working right before they did updates.

Failed to call hook 'SendImage' on plugin 'ImageLibrary v2.0.60' (NullReferenceException: Object reference not set to an instance of an object)
  at Oxide.Plugins.ImageLibrary.HasImage (System.String imageName, System.UInt64 imageId) [0x00012] in :0

  at Oxide.Plugins.ImageLibrary.SendImage (BasePlayer player, System.String imageName, System.UInt64 imageId) [0x00000] in :0

  at Oxide.Plugins.ImageLibrary.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x00ad2] in :0

  at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <09575a60985045248bcb43b20faeeb99>:0

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

  at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in :0