Fatal error: Out of memory (allocated 4194304) (tried to allocate 32768 bytes) in /var/www/html/wp-includes/functions.php on line 6454

Fatal error: Uncaught Error: Call to undefined function _canonical_charset() in /var/www/html/wp-includes/functions.php:4230 Stack trace: #0 /var/www/html/wp-includes/functions.php(3732): _wp_die_process_input() #1 /var/www/html/wp-includes/functions.php(3715): _default_wp_die_handler() #2 /var/www/html/wp-includes/class-wp-fatal-error-handler.php(234): wp_die() #3 /var/www/html/wp-includes/class-wp-fatal-error-handler.php(153): WP_Fatal_Error_Handler->display_default_error_template() #4 /var/www/html/wp-includes/class-wp-fatal-error-handler.php(57): WP_Fatal_Error_Handler->display_error_template() #5 [internal function]: WP_Fatal_Error_Handler->handle() #6 {main} thrown in /var/www/html/wp-includes/functions.php on line 4230