error 
SimpleKillFeed - Failed to compile: SimpleKillFeed.cs(732,9): error CS1525: Unexpected symbol `end-of-file', expecting `('

Redownload the plugin

line 783

var format = string.Format("[" + clan + "] ");

chage 

Failed to call hook 'OnEntityDeath' on plugin 'SimpleKillFeed v2.1.3' (NullReferenceException: Object reference not set to an instance of an object)

at Oxide.Plugins.SimpleKillFeed.OnEntityDeath (BaseAnimalNPC victim, HitInfo hitInfo) [0x000eb] in <805d7b5645664ab480b8993285307355>:0

at Oxide.Plugins.SimpleKillFeed.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x0026e] in <805d7b5645664ab480b8993285307355>: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.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <157a94ee66ab4a7991faecd1eb84be3b>:0

(15:01:39) | 5932966[5932966] was killed by WANGYICOOLest[76561############] at (1014.1, 37.1, -501.1)