Sub-menu didn't show up on hover

We migrated the site from Drupal 9.5.7 to Drupal 10.2.7. When we hovered over the admin menus, it didn't expand. 

Whereas on the admin pages, when we hover on the admin menus, it is working as expected.

On the page console, it is showing errors on the [Toolbar.js, MenuModel.js, ToolbarModel.js, BodyVisualView.js, MenuVisualView.js, ToolbarAuralView.js, ToolbarVisualView.js] scripts. These scripts were loading from the core/modules/toolbar module.

Drupal version: 10.2.7
Admin toolbar: 3.4.2

Please help us to fix the issues.