Fixed #6930 (probably)

core/src/mindustry/world/blocks/storage/Unloader.java

@@ -259,7 +259,7 @@ public class Unloader extends Block{
         public void read(Reads read, byte revision){
             super.read(read, revision);
             int id = revision == 1 ? read.s() : read.b();
-            sortItem = id == -1 ? null : content.items().get(id);
+            sortItem = id == -1 ? null : content.item(id);
         }
     }
 }

server/src/mindustry/server/ServerControl.java

@@ -784,6 +784,7 @@ public class ServerControl implements ApplicationListener{
 
             if(info != null){
                 info.lastKicked = 0;
+                netServer.admins.kickedIPs.remove(info.lastIP);
                 info("Pardoned player: @", info.plainLastName());
             }else{
                 err("That ID can't be found.");