Repeated installation issues

Hi Rikard

Here below is the contents of the wp-includes/default-constant.php file.
Please advise any limits out lined here that need to be changed, as it appears there is a limit of 256MB on one particular line.
Thank you
Helen

/**#@+
* Constants for expressing human-readable data sizes in their respective number of bytes.
*
* @since 4.4.0
*/
define( ‘KB_IN_BYTES’, 1024 );
define( ‘MB_IN_BYTES’, 1024 * KB_IN_BYTES );
define( ‘GB_IN_BYTES’, 1024 * MB_IN_BYTES );
define( ‘TB_IN_BYTES’, 1024 * GB_IN_BYTES );
/**#@-*/

$current_limit = @ini_get( ‘memory_limit’ );
$current_limit_int = wp_convert_hr_to_bytes( $current_limit );

// Define memory limits.
if ( ! defined( ‘WP_MEMORY_LIMIT’ ) ) {
if ( false === wp_is_ini_value_changeable( ‘memory_limit’ ) ) {
define( ‘WP_MEMORY_LIMIT’, $current_limit );
} elseif ( is_multisite() ) {
define( ‘WP_MEMORY_LIMIT’, ’64M’ );
} else {
define( ‘WP_MEMORY_LIMIT’, ’40M’ );
}
}

if ( ! defined( ‘WP_MAX_MEMORY_LIMIT’ ) ) {
if ( false === wp_is_ini_value_changeable( ‘memory_limit’ ) ) {
define( ‘WP_MAX_MEMORY_LIMIT’, $current_limit );
} elseif ( -1 === $current_limit_int || $current_limit_int > 268435456 /* = 256M */ ) {
define( ‘WP_MAX_MEMORY_LIMIT’, $current_limit );
} else {
define( ‘WP_MAX_MEMORY_LIMIT’, ‘256M’ );
}
}

// Set memory limits.
$wp_limit_int = wp_convert_hr_to_bytes( WP_MEMORY_LIMIT );
if ( -1 !== $current_limit_int && ( -1 === $wp_limit_int || $wp_limit_int > $current_limit_int ) ) {
@ini_set( ‘memory_limit’, WP_MEMORY_LIMIT );
}

if ( ! isset($blog_id) )
$blog_id = 1;

if ( !defined(‘WP_CONTENT_DIR’) )
define( ‘WP_CONTENT_DIR’, ABSPATH . ‘wp-content’ ); // no trailing slash, full paths only – WP_CONTENT_URL is defined further down

// Add define(‘WP_DEBUG’, true); to wp-config.php to enable display of notices during development.
if ( !defined(‘WP_DEBUG’) )
define( ‘WP_DEBUG’, false );

// Add define(‘WP_DEBUG_DISPLAY’, null); to wp-config.php use the globally configured setting for
// display_errors and not force errors to be displayed. Use false to force display_errors off.
if ( !defined(‘WP_DEBUG_DISPLAY’) )
define( ‘WP_DEBUG_DISPLAY’, true );

// Add define(‘WP_DEBUG_LOG’, true); to enable error logging to wp-content/debug.log.
if ( !defined(‘WP_DEBUG_LOG’) )
define(‘WP_DEBUG_LOG’, false);

if ( !defined(‘WP_CACHE’) )
define(‘WP_CACHE’, false);