Notice: require_once(): Read of 19065 bytes failed with errno=12 Cannot allocate memory in /var/www/html/wp-content/plugins/wordfence/waf/bootstrap.php on line 39

Fatal error: Uncaught Error: Failed opening required '/var/www/html/wp-content/plugins/wordfence/waf/wfWAFIPBlocksController.php' (include_path='.:/usr/local/lib/php') in /var/www/html/wp-content/plugins/wordfence/waf/bootstrap.php:39
Stack trace:
#0 /var/www/html/wordfence-waf.php(6): include_once()
#1 {main}
  thrown in /var/www/html/wp-content/plugins/wordfence/waf/bootstrap.php on line 39