Fatal error: Uncaught Error: Call to undefined function WP_Rocket\Buffer\readfile() in /home/barintech/public_html/wp-content/plugins/wp-rocket/inc/classes/Buffer/class-cache.php:191 Stack trace: #0 /home/barintech/public_html/wp-content/plugins/wp-rocket/inc/classes/Buffer/class-cache.php(114): WP_Rocket\Buffer\Cache->serve_cache_file('/home/barintech...') #1 /home/barintech/public_html/wp-content/advanced-cache.php(108): WP_Rocket\Buffer\Cache->maybe_init_process() #2 /home/barintech/public_html/wp-settings.php(97): include('/home/barintech...') #3 /home/barintech/public_html/wp-config.php(110): require_once('/home/barintech...') #4 /home/barintech/public_html/wp-load.php(50): require_once('/home/barintech...') #5 /home/barintech/public_html/wp-blog-header.php(13): require_once('/home/barintech...') #6 /home/barintech/public_html/index.php(17): require('/home/barintech...') #7 {main} thrown in /home/barintech/public_html/wp-content/plugins/wp-rocket/inc/classes/Buffer/class-cache.php on line 191