Cannot create backup with BackWPup

When I go into my wp-content folder and uncheck the “read only” option, it changes back to “read only” immediately after I close out of it.

Thank you so much for your help! I tried your fix and got this new error message:Parse error: syntax error, unexpected ‘&’ in C:\Users\admin\Local Sites\webdevblog\app\public\wp-config.php on line 64

I might have botched it, so I’ve copied the wp-config below for you to judge:

<?php
/**
 * The base configuration for WordPress
 *
 * The wp-config.php creation 

script uses this file during the
 * installation. You don't have to use the web site, 

you can
 * copy this file to "wp-config.php" and fill in the values.
 *
 * This file 

contains the following configurations:
 *
 * * MySQL settings
 * * Secret keys
 * * 

Database table prefix
 * * ABSPATH
 *
 * @link https://codex.ww.wp.xz.cn/Editing_wp-

config.php
 *
 * @package WordPress
 */

// ** MySQL settings - You can get this info 

from your web host ** //
/** The name of the database for WordPress */
define( 

'DB_NAME', 'local' );

/** MySQL database username */
define( 'DB_USER', 'root' );

/** 

MySQL database password */
define( 'DB_PASSWORD', 'root' );

/** MySQL hostname */
define( 'DB_HOST', 'localhost' );

/** Database Charset to use in creating database 

tables. */
define( 'DB_CHARSET', 'utf8' );

/** The Database Collate type. Don't change 

this if in doubt. */
define( 'DB_COLLATE', '' );

/**
 * Authentication Unique Keys and 

Salts.
 *
 * Change these to different unique phrases!
 * You can generate these using 

the {@link https://api.ww.wp.xz.cn/secret-key/1.1/salt/ ww.wp.xz.cn secret-key 

service}
 * You can change these at any point in time to invalidate all existing 

cookies. This will force all users to have to log in again.
 *
 * @since 2.6.0
 */
define('AUTH_KEY',         

'ZiuAaSGtctGs54R9UbmCJoTRR3Zd8sjA72jYurcE8vXhDhOM4bzg5oQUklwPr/ZiUo6OeCzJfptbXjsXSYR

/lQ==');
define('SECURE_AUTH_KEY',  

'TzO748s5NREbexoYAjsfDQV6AKJ/z7JcQzCe64bc54GIIk9qyNmm7+kn/aWSwbwY1uDd2Yv

+0ulQgySJKKDtDA==');
define('LOGGED_IN_KEY',    '38oDIMuQsX8/AfM

+Ni7vRgR7ggX80AKvbOt0odsR3j14BdykPPGxS9LOZont0qpG4cc8SihjhgQDKELIB+0fVQ==');
define

('NONCE_KEY',        

'THgF5cZl764TFkVkPswEMcR0aLuCPuRrlj36ZJSEzUg3sdYBHlc2x/wXtw8K5JfDg2yE7V7hVG+8CCMCL

+6qIg==');
define('AUTH_SALT',        'N62h7YtZGZPFrbq+TzfdrbLrDCcA+LDVhWJlYG

+Z5YZhB3RJmiNRXTacgTOc5A4o48b6OW7btDhC7/D9vQnd6g==');
define('SECURE_AUTH_SALT', 

'dezY7TGoT2+1gH1dWuGSWwV3ORoxLarM3+wwZs0aOqpssOltPNiqXHX3tp1fQ3FosKXcvvmJWa0heDWoyZ2

wWA==');
define('LOGGED_IN_SALT',   

'bkRNwwdDAHeoxyMzhCzqE8d/RfWPBD9ue2VjCYSj71rQY8FkkSr4Ck76Wp33ml/7HwOs

+jr3a6INxturdl3PSw==');
define('NONCE_SALT',       

'G0Hv2DO6FFJ3PN/Pz5TaHDX94c2yEsm6GrgdwUHmFydLZTMT0FZpFYFBOmFhycGES5bafQnZdxzvioDVGxr

zfA==');

/**
 * WordPress Database Table prefix.
 *
 * You can have multiple 

installations in one database if you give each
 * a unique prefix. Only numbers, 

letters, and underscores please!
 */
$table_prefix = 'wp_';define

('ALTERNATE_WP_CRON' , true );

/* That's all, stop editing! Happy 

publishing. */

/** Absolute path to the WordPress directory. */
if ( ! defined( 

'ABSPATH' ) ) {
	define( 'ABSPATH', dirname( __FILE__ ) . '/' );
}

/** Sets up 

WordPress vars and included files. */
require_once ABSPATH . 'wp-settings.php';

Thank you so much @duongcuong96 !