Title: Error session_start() expects parameter 1
Last modified: December 11, 2019

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# Error session_start() expects parameter 1

 *  Resolved [evvazoe](https://wordpress.org/support/users/evvazoe/)
 * (@evvazoe)
 * [6 years, 6 months ago](https://wordpress.org/support/topic/error-session_start-expects-parameter-1/)
 * Hi guys
 * I have switched to 7.0 PHP version today and I have noticed that line showing
   above the blog header (frontend)
 * Warning: session_start() expects parameter 1 to be array, string given in /wp-
   includes/class-wp-hook.php on line 288
 * apart from that in the backend I have this:
 * Warning: session_start() expects parameter 1 to be array, string given in /wp-
   includes/class-wp-hook.php on line 288
 * Warning: Cannot modify header information – headers already sent by (output started
   at /wp-includes/class-wp-hook.php:288) in /wp-includes/functions.php on line 
   5946
 * Warning: Cannot modify header information – headers already sent by (output started
   at /wp-includes/class-wp-hook.php:288) in /wp-admin/includes/misc.php on line
   1252
 * Warning: Cannot modify header information – headers already sent by (output started
   at /wp-includes/class-wp-hook.php:288) in /wp-admin/admin-header.php on line 
   9
 * What to do?
    —
 * class-wp-hook.php:288 is this:
    $value = call_user_func_array( $the_[‘function’],
   $args );

Viewing 3 replies - 1 through 3 (of 3 total)

 *  [Fotis](https://wordpress.org/support/users/markwaregr/)
 * (@markwaregr)
 * [6 years, 6 months ago](https://wordpress.org/support/topic/error-session_start-expects-parameter-1/#post-12229960)
 * Hi there,
    I dont believe this is related to the theme but, Please check for 
   any plugin conflicts first [https://www.cssigniter.com/kb/checking-for-plugin-conflicts/](https://www.cssigniter.com/kb/checking-for-plugin-conflicts/)
   and contact your host to disable PHP Warnings from your installation, since they
   are only meant to be seen by developers. Let me know if this worked for you.
 *  Thread Starter [evvazoe](https://wordpress.org/support/users/evvazoe/)
 * (@evvazoe)
 * [6 years, 5 months ago](https://wordpress.org/support/topic/error-session_start-expects-parameter-1/#post-12236879)
 * Thank you very much. I did as you had advised.
    WP Spam Fighter – thats whhat
   caused problems. hhave a nice day!
 *  [Fotis](https://wordpress.org/support/users/markwaregr/)
 * (@markwaregr)
 * [6 years, 5 months ago](https://wordpress.org/support/topic/error-session_start-expects-parameter-1/#post-12237781)
 * That’s great. Glad I could help. If you need additional help with anything, feel
   free to get in touch and I will be there for you within 24 hours.
 * Also, we’d really appreciate if you could you take a minute and rate our theme/
   plugin at [https://wordpress.org/support/view/theme-reviews/olsen-light](https://wordpress.org/support/view/theme-reviews/olsen-light).
   In order to provide a rating, you will need a WordPress.org account and it takes
   only a minute to create one by following this link [https://login.wordpress.org/register](https://login.wordpress.org/register)

Viewing 3 replies - 1 through 3 (of 3 total)

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 * 3 replies
 * 2 participants
 * Last reply from: [Fotis](https://wordpress.org/support/users/markwaregr/)
 * Last activity: [6 years, 5 months ago](https://wordpress.org/support/topic/error-session_start-expects-parameter-1/#post-12237781)
 * Status: resolved