eLearnCommerce - Simple Lock WP under login.

snippet.php

<?php

add_action( 'init', function() {
  if( is_admin() )
    return;

  if( is_user_logged_in() )
    return;

  $trimmed_url = trim( get_site_url(), '/' );

  if( strpos( wpep_get_current_url(), $trimmed_url . '/wp-login.php' ) === 0 )
    return;

  wpep_redirect( $trimmed_url . '/wp-admin' );
  exit;
}, 9999 );