Warning: require_once(/home/r2ait/public_html/wp-settings.php): Failed to open stream: No such file or directory in /home/r2ait/public_html/wp-config.php on line 89

Fatal error: Uncaught Error: Failed opening required '/home/r2ait/public_html/wp-settings.php' (include_path='.:/usr/local/apps/php81/lib/php') in /home/r2ait/public_html/wp-config.php:89
Stack trace:
#0 /home/r2ait/public_html/wp-load.php(56): require_once()
#1 /home/r2ait/public_html/wp-blog-header.php(13): require_once('/home/r2ait/pub...')
#2 /home/r2ait/public_html/index.php(1): require('/home/r2ait/pub...')
#3 {main}
  thrown in /home/r2ait/public_html/wp-config.php on line 89