Menu does not appear while opening my site management menu such as add content type,module ,configuration does not appear in my site.
So how can I solve it.
Please login through admin credentials. Check module permissions for Toolbar for authenticated users. Check that if it is unchecked. Try flushing drupal cache.

Once you see the toolbar. You can install admin_menu for better administration menu.

https://www.drupal.org/project/admin_menu