Fatal error: Uncaught TypeError: call_user_func_array(): Argument #1 ($callback) must be a valid callback, no array or string given in /usr/www/users/dinotdhaxa/turnkeystone.co.za/wp-includes/class-wp-hook.php:324
Stack trace:
#0 /usr/www/users/dinotdhaxa/turnkeystone.co.za/wp-includes/plugin.php(205): WP_Hook->apply_filters(2700000, Array)
#1 /usr/www/users/dinotdhaxa/turnkeystone.co.za/wp-content/plugins/woo-rfq-for-woocommerce/wp-session-manager/includes/class-wp-session.php(141): apply_filters('_rfqtk_wp_sessi...', 2700000)
#2 /usr/www/users/dinotdhaxa/turnkeystone.co.za/wp-content/plugins/woo-rfq-for-woocommerce/wp-session-manager/includes/class-wp-session.php(165): RFQTK_WP_Session->set_expiration()
#3 /usr/www/users/dinotdhaxa/turnkeystone.co.za/wp-content/plugins/woo-rfq-for-woocommerce/wp-session-manager/includes/class-wp-session.php(125): RFQTK_WP_Session->set_cookie()
#4 /usr/www/users/dinotdhaxa/turnkeystone.co.za/wp-content/plugins/woo-rfq-for-woocommerce/wp-session-manager/includes/class-wp-session.php(72): RFQTK_WP_Session->__construct()
#5 /usr/www/users/dinotdhaxa/turnkeystone.co.za/wp-content/plugins/woo-rfq-for-woocommerce/wp-session-manager/includes/wp-session.php(86): RFQTK_WP_Session::get_instance()
#6 /usr/www/users/dinotdhaxa/turnkeystone.co.za/wp-includes/class-wp-hook.php(324): RFQTK_wp_session_start('')
#7 /usr/www/users/dinotdhaxa/turnkeystone.co.za/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array)
#8 /usr/www/users/dinotdhaxa/turnkeystone.co.za/wp-includes/plugin.php(517): WP_Hook->do_action(Array)
#9 /usr/www/users/dinotdhaxa/turnkeystone.co.za/wp-settings.php(555): do_action('plugins_loaded')
#10 /usr/www/users/dinotdhaxa/turnkeystone.co.za/wp-config.php(90): require_once('/usr/www/users/...')
#11 /usr/www/users/dinotdhaxa/turnkeystone.co.za/wp-load.php(50): require_once('/usr/www/users/...')
#12 /usr/www/users/dinotdhaxa/turnkeystone.co.za/wp-blog-header.php(13): require_once('/usr/www/users/...')
#13 /usr/www/users/dinotdhaxa/turnkeystone.co.za/index.php(17): require('/usr/www/users/...')
#14 {main}
  thrown in /usr/www/users/dinotdhaxa/turnkeystone.co.za/wp-includes/class-wp-hook.php on line 324

Fatal error: Uncaught TypeError: call_user_func_array(): Argument #1 ($callback) must be a valid callback, no array or string given in /usr/www/users/dinotdhaxa/turnkeystone.co.za/wp-includes/class-wp-hook.php:324
Stack trace:
#0 /usr/www/users/dinotdhaxa/turnkeystone.co.za/wp-includes/plugin.php(205): WP_Hook->apply_filters(2700000, Array)
#1 /usr/www/users/dinotdhaxa/turnkeystone.co.za/wp-content/plugins/woo-rfq-for-woocommerce/wp-session-manager/includes/class-wp-session.php(141): apply_filters('_rfqtk_wp_sessi...', 2700000)
#2 /usr/www/users/dinotdhaxa/turnkeystone.co.za/wp-content/plugins/woo-rfq-for-woocommerce/wp-session-manager/includes/class-wp-session.php(126): RFQTK_WP_Session->set_expiration()
#3 /usr/www/users/dinotdhaxa/turnkeystone.co.za/wp-content/plugins/woo-rfq-for-woocommerce/wp-session-manager/includes/class-wp-session.php(72): RFQTK_WP_Session->__construct()
#4 /usr/www/users/dinotdhaxa/turnkeystone.co.za/wp-content/plugins/woo-rfq-for-woocommerce/wp-session-manager/includes/wp-session.php(127): RFQTK_WP_Session::get_instance()
#5 /usr/www/users/dinotdhaxa/turnkeystone.co.za/wp-includes/class-wp-hook.php(324): RFQTK_wp_session_write_close('')
#6 /usr/www/users/dinotdhaxa/turnkeystone.co.za/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array)
#7 /usr/www/users/dinotdhaxa/turnkeystone.co.za/wp-includes/plugin.php(517): WP_Hook->do_action(Array)
#8 /usr/www/users/dinotdhaxa/turnkeystone.co.za/wp-includes/load.php(1280): do_action('shutdown')
#9 [internal function]: shutdown_action_hook()
#10 {main}
  thrown in /usr/www/users/dinotdhaxa/turnkeystone.co.za/wp-includes/class-wp-hook.php on line 324