diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 2017c6a..a47cda2 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -5,15 +5,8 @@
   </component>
   <component name="ChangeListManager">
     <list default="true" id="cf65a335-ff51-4f13-b4a9-876fef130b56" name="Changes" comment="fixed the bug of null pointer exception in adding a new book and editing an existing book">
-      <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/data/datafiles/borrowers_data.txt" beforeDir="false" afterPath="$PROJECT_DIR$/data/datafiles/borrowers_data.txt" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/data/datafiles/customers_data.txt" beforeDir="false" afterPath="$PROJECT_DIR$/data/datafiles/customers_data.txt" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/data/datafiles/discount_data.txt" beforeDir="false" afterPath="$PROJECT_DIR$/data/datafiles/discount_data.txt" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/data/datafiles/reviews_data.txt" beforeDir="false" afterPath="$PROJECT_DIR$/data/datafiles/reviews_data.txt" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/data/datafiles/transaction_data_user2.txt" beforeDir="false" afterPath="$PROJECT_DIR$/data/datafiles/transaction_data_user2.txt" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/java/com/asu/librarysystem/BookController.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/com/asu/librarysystem/BookController.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/java/com/asu/librarysystem/MainApplication.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/com/asu/librarysystem/MainApplication.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/main/java/com/asu/librarysystem/ReviewHandler.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/com/asu/librarysystem/ReviewHandler.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.idea/misc.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/misc.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/com/asu/librarysystem/Library.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/com/asu/librarysystem/Library.java" afterDir="false" />
     </list>
     <option name="SHOW_DIALOG" value="false" />
     <option name="HIGHLIGHT_CONFLICTS" value="true" />
@@ -85,7 +78,7 @@
     "git-widget-placeholder": "main",
     "ignore.virus.scanning.warn.message": "true",
     "kotlin-language-version-configured": "true",
-    "last_opened_file_path": "E:/ibrahem/oop/project6/1/library-system2/src/main/resources/com/asu/librarysystem",
+    "last_opened_file_path": "E:/ibrahem/oop/project8/library-system",
     "project.structure.last.edited": "Libraries",
     "project.structure.proportion": "0.15",
     "project.structure.side.proportion": "0.2"
diff --git a/src/main/java/com/asu/librarysystem/Library.java b/src/main/java/com/asu/librarysystem/Library.java
index 13b432b..5cf4be2 100644
--- a/src/main/java/com/asu/librarysystem/Library.java
+++ b/src/main/java/com/asu/librarysystem/Library.java
@@ -612,7 +612,7 @@ public static void readLibrary () {
                     String line = scanner.nextLine();
                     String[] parts = line.split(",,,");
                     Order order = new Order(Integer.valueOf(parts[1]), Integer.valueOf(parts[2]), Integer.valueOf(parts[3]));
-                    customer.setIdCounter(Integer.valueOf(parts[0]));
+                    order.setIdCounter(Integer.valueOf(parts[0]));
                     customer.addOrder(order);
                 }
                 scanner.close();