diff --git a/public/main/admin/ldap_synchro.php b/public/main/admin/ldap_synchro.php
index 415a275a7f..a3ec021c56 100644
--- a/public/main/admin/ldap_synchro.php
+++ b/public/main/admin/ldap_synchro.php
@@ -30,8 +30,6 @@ $tbl_session_rel_course_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_C
 $tbl_course = Database::get_main_table(TABLE_MAIN_COURSE);
 $tbl_user = Database::get_main_table(TABLE_MAIN_USER);
 $tbl_session_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_USER);
-$tbl_class = Database::get_main_table(TABLE_MAIN_CLASS);
-$tbl_class_user = Database::get_main_table(TABLE_MAIN_CLASS_USER);
 
 $tbl_session_rel_etape = "session_rel_etape";
 
diff --git a/public/main/admin/ldap_users_synchro.php b/public/main/admin/ldap_users_synchro.php
index 8abe99f465..fafa1989f2 100644
--- a/public/main/admin/ldap_users_synchro.php
+++ b/public/main/admin/ldap_users_synchro.php
@@ -28,9 +28,6 @@ $tbl_session_rel_course_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_C
 $tbl_course = Database::get_main_table(TABLE_MAIN_COURSE);
 $tbl_user = Database::get_main_table(TABLE_MAIN_USER);
 $tbl_session_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_USER);
-$tbl_class = Database::get_main_table(TABLE_MAIN_CLASS);
-$tbl_class_user = Database::get_main_table(TABLE_MAIN_CLASS_USER);
-
 $tbl_session_rel_etape = "session_rel_etape";
 
 $id_session = intval($_GET['id_session']);
diff --git a/src/CoreBundle/Entity/ClassItem.php b/src/CoreBundle/Entity/ClassItem.php
deleted file mode 100644
index 3d5adecae8..0000000000
--- a/src/CoreBundle/Entity/ClassItem.php
+++ /dev/null
@@ -1,89 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-/* For licensing terms, see /license.txt */
-
-namespace Chamilo\CoreBundle\Entity;
-
-use Doctrine\ORM\Mapping as ORM;
-
-/**
- * ClassItem.
- *
- * @ORM\Table(name="class_item")
- * @ORM\Entity
- */
-class ClassItem
-{
-    /**
-     * @ORM\Column(name="id", type="integer")
-     * @ORM\Id
-     * @ORM\GeneratedValue(strategy="IDENTITY")
-     */
-    protected int $id;
-
-    /**
-     * @ORM\Column(name="code", type="string", length=40, nullable=true)
-     */
-    protected ?string $code = null;
-
-    /**
-     * @ORM\Column(name="name", type="text", nullable=false)
-     */
-    protected string $name;
-
-    /**
-     * Set code.
-     *
-     * @return ClassItem
-     */
-    public function setCode(string $code)
-    {
-        $this->code = $code;
-
-        return $this;
-    }
-
-    /**
-     * Get code.
-     *
-     * @return string
-     */
-    public function getCode()
-    {
-        return $this->code;
-    }
-
-    /**
-     * Set name.
-     *
-     * @return ClassItem
-     */
-    public function setName(string $name)
-    {
-        $this->name = $name;
-
-        return $this;
-    }
-
-    /**
-     * Get name.
-     *
-     * @return string
-     */
-    public function getName()
-    {
-        return $this->name;
-    }
-
-    /**
-     * Get id.
-     *
-     * @return int
-     */
-    public function getId()
-    {
-        return $this->id;
-    }
-}
diff --git a/src/CoreBundle/Entity/ClassUser.php b/src/CoreBundle/Entity/ClassUser.php
deleted file mode 100644
index 1bbfe8345f..0000000000
--- a/src/CoreBundle/Entity/ClassUser.php
+++ /dev/null
@@ -1,76 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-/* For licensing terms, see /license.txt */
-
-namespace Chamilo\CoreBundle\Entity;
-
-use Doctrine\ORM\Mapping as ORM;
-
-/**
- * ClassUser.
- *
- * @ORM\Table(name="class_user")
- * @ORM\Entity
- */
-class ClassUser
-{
-    /**
-     * @ORM\Column(name="class_id", type="integer")
-     * @ORM\Id
-     * @ORM\GeneratedValue(strategy="NONE")
-     */
-    protected int $classId;
-
-    /**
-     * @ORM\Column(name="user_id", type="integer")
-     * @ORM\Id
-     * @ORM\GeneratedValue(strategy="NONE")
-     */
-    protected int $userId;
-
-    /**
-     * Set classId.
-     *
-     * @return ClassUser
-     */
-    public function setClassId(int $classId)
-    {
-        $this->classId = $classId;
-
-        return $this;
-    }
-
-    /**
-     * Get classId.
-     *
-     * @return int
-     */
-    public function getClassId()
-    {
-        return $this->classId;
-    }
-
-    /**
-     * Set userId.
-     *
-     * @return ClassUser
-     */
-    public function setUserId(int $userId)
-    {
-        $this->userId = $userId;
-
-        return $this;
-    }
-
-    /**
-     * Get userId.
-     *
-     * @return int
-     */
-    public function getUserId()
-    {
-        return $this->userId;
-    }
-}