Update Emby.Server.Implementations/ApplicationHost.cs

Co-authored-by: Claus Vium <cvium@users.noreply.github.com>

Emby.Server.Implementations/ApplicationHost.cs

@@ -502,7 +502,7 @@ namespace Emby.Server.Implementations
 
             RegisterServices();
 
-            RegisterPlugInServices();
+            RegisterPluginServices();
         }
 
         /// <summary>