Fix wanted system null reference

ReallifeGamemode.Server/Wanted/Jail.cs

@@ -109,7 +109,7 @@ namespace ReallifeGamemode.Server.Wanted
       foreach (var player in NAPI.Pools.GetAllPlayers())
       {
         User user = player.GetUser();
-        if (!Jailtime.ContainsKey(user.Id))
+        if (user != null && !Jailtime.ContainsKey(user.Id))
         {
           foreach (var copPlayer in NAPI.Pools.GetAllPlayers())
           {
@@ -180,7 +180,6 @@ namespace ReallifeGamemode.Server.Wanted
       }
     }
 
-
     public static void Release_Jail(Client player, string reason)
     {
       User user = player.GetUser();