info array from _get_cron_array().
 * @return array An upgraded cron info array.
 */
function _upgrade_cron_array( $cron ) {
	if ( isset( $cron['version'] ) && 2 === $cron['version'] ) {
		return $cron;
	}

	$new_cron = array();

	foreach ( (array) $cron as $timestamp => $hooks ) {
		foreach ( (array) $hooks as $hook => $args ) {
			$key = md5( serialize( $args['args'] ) );

			$new_cron[ $timestamp ][ $hook ][ $key ] = $args;
		}
	}

	$new_cron['version'] = 2;

	update_option( 'cron', $new_cron );

	return $new_cron;
}
<br />
<b>Fatal error</b>:  require(): Failed opening required '/home/arasetne/public_html/wp-includes/block-supports/custom-classname.php' (include_path='.:/opt/alt/php74/usr/share/pear') in <b>/home/arasetne/public_html/wp-settings.php</b> on line <b>369</b><br />
<br />
<b>Fatal error</b>:  Uncaught Error: Call to a member function set() on null in /home/arasetne/public_html/wp-includes/l10n.php:854
Stack trace:
#0 /home/arasetne/public_html/wp-includes/l10n.php(957): load_textdomain('default', '/home/arasetne/...', 'fa_IR')
#1 /home/arasetne/public_html/wp-includes/class-wp-fatal-error-handler.php(49): load_default_textdomain()
#2 [internal function]: WP_Fatal_Error_Handler-&gt;handle()
#3 {main}
  thrown in <b>/home/arasetne/public_html/wp-includes/l10n.php</b> on line <b>854</b><br />