fix

admin/main/submenu/item1/config.php

@@ -1,30 +0,0 @@
-<?php
-
-use Wt\Core\Admin\SiteSettingsAdminPage;
-
-IncludeModuleLangFile(__FILE__);
-
-/**
- * @var $this SiteSettingsAdminPage
- */
-
-return array(
-    'MAIN' => array(
-        'TITLE' => 'Общие сведения',
-        'OPTIONS' => array(
-
-        ),
-    ),
-    'DOCS' => array(
-        'TITLE' => 'Docs',
-        'OPTIONS' => array(
-            'DOCUMENTATION' => array(
-                'TITLE' => 'Documentation',
-                'TYPE' => 'content',
-                'INCLUDEFILE' => \Wt\Core\Tools::removeDocRoot(__DIR__ . '/include/documentation.php'),
-                'SHOW_EDIT_BUTTON' => 'Y',
-                'DEFAULT' => '',
-            ),
-        ),
-    ),
-);

admin/main/submenu/item1/include/documentation.php

@@ -1 +0,0 @@
-Документация

admin/main/submenu/item1/index.php

@@ -1,18 +0,0 @@
-<?php
-
-
-use Wt\Core\Admin\TableAdminPage;
-
-
-require_once($_SERVER['DOCUMENT_ROOT'].'/bitrix/modules/main/include/prolog_admin_before.php');
-
-
-CJSCore::Init('jquery');
-CAjax::Init();
-
-require($_SERVER["DOCUMENT_ROOT"]."/bitrix/modules/main/include/prolog_admin_after.php");
-
-$adminPage = new \Wt\Core\Admin\SiteSettingsAdminPage('bx.null', 'main.item1');
-$adminPage->render();
-
-require($_SERVER['DOCUMENT_ROOT'].'/bitrix/modules/main/include/epilog_admin.php');

admin/main/submenu/item1/lang/ru/index.php

@@ -1,2 +0,0 @@
-<?
-$MESS['CONTEXT_PROFILE_DELETE_CONFIRM'] = 'Удалить %s?';

admin/main/submenu/item1/menu.php

@@ -1,11 +0,0 @@
-<?php
-
-use \Bitrix\Main\Localization\Loc;
-use Wt\Core\Admin\GlobalMenuItem;
-
-Loc::loadMessages(__FILE__);
-
-return (new GlobalMenuItem())
-    ->setSort(5)
-    ->setTitle('Null: Item1')
-    ->setUrl();

admin/main/submenu/null_table/index.php

@@ -11,7 +11,7 @@ require_once($_SERVER['DOCUMENT_ROOT'].'/bitrix/modules/main/include/prolog_admi
  */
 $ormTable = resolve(NullTable::class);
 
-$tableAdminPage = new TableAdminPage($ormTable, $_REQUEST, '/bitrix/admin/bx_null.main.null_table.null_table_row.php');
+$tableAdminPage = new TableAdminPage($ormTable, $_REQUEST, '/bitrix/admin/bx_null.main.null_table.row.php');
 $tableAdminPage
     ->checkPermission()
     ->start()

admin/main/submenu/null_table/menu.php

@@ -9,4 +9,5 @@ Loc::loadMessages(__FILE__);
 return (new GlobalMenuItem())
     ->setSort(1300)
     ->setTitle('Null Table')
+    ->setIcon('iblock_menu_icon_iblocks')
     ->setUrl();

admin/main/submenu/null_table/submenu/row/menu.php

@@ -8,5 +8,6 @@ Loc::loadMessages(__FILE__);
 return (new GlobalMenuItem())
     ->setSort(1400)
     ->setTitle('Null Table Row')
+    ->setIcon('default_menu_icon')
     ->setVisible(false)
     ->setUrl();