Warning: Illegal string offset 'remember' in /wp-includes/user.php on line 39

Warning: Cannot assign an empty string to a string offset in /wp-includes/user.php on line 39

Warning: Illegal string offset 'user_login' in /wp-includes/user.php on line 54

Fatal error: Uncaught Error: Cannot create references to/from string offsets in /wp-includes/user.php:54 Stack trace: #0 /wp-login.php(775): wp_signon('', '') #1 /wp-content/plugins/rename-wp-login/rename-wp-login.php(470): require_once('/wp-login.php') #2 /wp-includes/plugin.php(496): Rename_WP_Login->wp_loaded('') #3 /wp-settings.php(374): do_action('wp_loaded') #4 /wp-config.php(88): require_once('/wp-settings.ph...') #5 /wp-load.php(29): require_once('/wp-config.php') #6 /wp-blog-header.php(12): require_once('/wp-load.php') #7 /index.php(17): require('/wp-blog-header...') #8 {main} thrown in /wp-includes/user.php on line 54