Hi, I have a WordPress multisite installation with 7 site, all site is working fine but only one site giving blank screen. when I activated debug true in config I got many error Deprecated: Function split() is deprecated in /var/www/wordpress/wp-content/plugins/advertising-manager/lib/OX/Tools.php on line 15 Deprecated: Function split() is deprecated in /var/www/wordpress/wp-content/plugins/advertising-manager/lib/OX/Tools.php on line 15 Deprecated: Function split() is deprecated in /var/www/wordpress/wp-content/plugins/advertising-manager/lib/OX/Tools.php on line 15 Deprecated: Function split() is deprecated in /var/www/wordpress/wp-content/plugins/advertising-manager/lib/OX/Tools.php on line 15 Deprecated: Function split() is deprecated in /var/www/wordpress/wp-content/plugins/advertising-manager/lib/OX/Tools.php on line 15 Deprecated: Function split() is deprecated in /var/www/wordpress/wp-content/plugins/advertising-manager/lib/OX/Tools.php on line 15 Deprecated: Function split() is deprecated in /var/www/wordpress/wp-content/plugins/advertising-manager/lib/OX/Tools.php on line 15 Deprecated: Function split() is deprecated in /var/www/wordpress/wp-content/plugins/advertising-manager/lib/OX/Tools.php on line 15 Deprecated: Function split() is deprecated in /var/www/wordpress/wp-content/plugins/advertising-manager/lib/OX/Tools.php on line 15 Deprecated: Function split() is deprecated in /var/www/wordpress/wp-content/plugins/advertising-manager/lib/OX/Tools.php on line 15 Deprecated: Function split() is deprecated in /var/www/wordpress/wp-content/plugins/advertising-manager/lib/OX/Tools.php on line 15 Deprecated: Function split() is deprecated in /var/www/wordpress/wp-content/plugins/advertising-manager/lib/OX/Tools.php on line 15 Deprecated: Function split() is deprecated in /var/www/wordpress/wp-content/plugins/advertising-manager/lib/OX/Tools.php on line 15 Notice: Undefined index: enable-adjs in /var/www/wordpress/wp-content/plugins/advertising-manager/lib/Advman/Dal.php on line 153 Deprecated: Assigning the return value of new by reference is deprecated in /var/www/wordpress/wp-content/plugins/exec-php/exec-php.php on line 22 Deprecated: Assigning the return value of new by reference is deprecated in /var/www/wordpress/wp-content/plugins/exec-php/includes/manager.php on line 36 Deprecated: Assigning the return value of new by reference is deprecated in /var/www/wordpress/wp-content/plugins/exec-php/includes/manager.php on line 37 Deprecated: Assigning the return value of new by reference is deprecated in /var/www/wordpress/wp-content/plugins/exec-php/includes/manager.php on line 38 Deprecated: Assigning the return value of new by reference is deprecated in /var/www/wordpress/wp-content/plugins/exec-php/includes/manager.php on line 39 Deprecated: Assigning the return value of new by reference is deprecated in /var/www/wordpress/wp-content/plugins/exec-php/includes/admin.php on line 53 Deprecated: Assigning the return value of new by reference is deprecated in /var/www/wordpress/wp-content/plugins/exec-php/includes/admin.php on line 56 Deprecated: Assigning the return value of new by reference is deprecated in /var/www/wordpress/wp-content/plugins/exec-php/includes/admin.php on line 57 Deprecated: Assigning the return value of new by reference is deprecated in /var/www/wordpress/wp-content/plugins/exec-php/includes/admin.php on line 63 Deprecated: Assigning the return value of new by reference is deprecated in /var/www/wordpress/wp-content/plugins/exec-php/includes/admin.php on line 64 Deprecated: Assigning the return value of new by reference is deprecated in /var/www/wordpress/wp-content/plugins/exec-php/includes/admin.php on line 79 Deprecated: Assigning the return value of new by reference is deprecated in /var/www/wordpress/wp-content/plugins/exec-php/includes/cache.php on line 22 Deprecated: Assigning the return value of new by reference is deprecated in /var/www/wordpress/wp-content/plugins/exec-php/includes/cache.php on line 39 Deprecated: Assigning the return value of new by reference is deprecated in /var/www/wordpress/wp-content/plugins/exec-php/includes/ajax.php on line 64 Notice: Undefined variable: pagenow in /var/www/wordpress/wp-content/plugins/portfolio-slideshow/inc/metabox.php on line 22 Notice: Undefined variable: pagenow in /var/www/wordpress/wp-content/plugins/portfolio-slideshow/inc/metabox.php on line 22 Notice: wp_enqueue_script was called incorrectly. Scripts and styles should not be registered or enqueued until the wp_enqueue_scripts, admin_enqueue_scripts, or login_enqueue_scripts hooks. Please see Debugging in WordPress for more information. (This message was added in version 3.3.) in /var/www/wordpress/wp-includes/functions.php on line 3245 Warning: session_start(): Cannot send session cookie - headers already sent by (output started at /var/www/wordpress/wp-content/plugins/portfolio-slideshow/inc/metabox.php:22) in /var/www/wordpress/wp-content/plugins/constant-contact-api/functions.php on line 5 Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at /var/www/wordpress/wp-content/plugins/portfolio-slideshow/inc/metabox.php:22) in /var/www/wordpress/wp-content/plugins/constant-contact-api/functions.php on line 5 Warning: Cannot modify header information - headers already sent by (output started at /var/www/wordpress/wp-content/plugins/portfolio-slideshow/inc/metabox.php:22) in /var/www/wordpress/wp-includes/pluggable.php on line 1121 Code (markup): I have tried with deactivated all plugin and activate one by one, also deactvated all plugins from disturbed site dashboard. can anyone please tell me how to fix this?