Fatal error: Uncaught TypeError: call_user_func_array(): Argument #1 ($callback) must be a valid callback, function "custom_pre_get_posts_query" not found or invalid function name in /home/jirafeug/public_html/zbut-market.eu/wp-includes/class-wp-hook.php:355 Stack trace: #0 /home/jirafeug/public_html/zbut-market.eu/wp-includes/class-wp-hook.php(377): WP_Hook->apply_filters('', Array) #1 /home/jirafeug/public_html/zbut-market.eu/wp-includes/plugin.php(523): WP_Hook->do_action(Array) #2 /home/jirafeug/public_html/zbut-market.eu/wp-content/plugins/woocommerce/includes/class-wc-query.php(605): do_action('woocommerce_pro...', Object(WP_Query), Object(WC_Query)) #3 /home/jirafeug/public_html/zbut-market.eu/wp-content/plugins/woocommerce/includes/class-wc-query.php(454): WC_Query->product_query(Object(WP_Query)) #4 /home/jirafeug/public_html/zbut-market.eu/wp-includes/class-wp-hook.php(353): WC_Query->pre_get_posts(Object(WP_Query)) #5 /home/jirafeug/public_html/zbut-market.eu/wp-includes/class-wp-hook.php(377): WP_Hook->apply_filters('', Array) #6 /home/jirafeug/public_html/zbut-market.eu/wp-includes/plugin.php(571): WP_Hook->do_action(Array) #7 /home/jirafeug/public_html/zbut-market.eu/wp-includes/class-wp-query.php(1916): do_action_ref_array('pre_get_posts', Array) #8 /home/jirafeug/public_html/zbut-market.eu/wp-includes/class-wp-query.php(3974): WP_Query->get_posts() #9 /home/jirafeug/public_html/zbut-market.eu/wp-includes/class-wp.php(704): WP_Query->query(Array) #10 /home/jirafeug/public_html/zbut-market.eu/wp-includes/class-wp.php(825): WP->query_posts() #11 /home/jirafeug/public_html/zbut-market.eu/wp-includes/functions.php(1352): WP->main('') #12 /home/jirafeug/public_html/zbut-market.eu/wp-blog-header.php(16): wp() #13 /home/jirafeug/public_html/zbut-market.eu/index.php(17): require('/home/jirafeug/...') #14 {main} thrown in /home/jirafeug/public_html/zbut-market.eu/wp-includes/class-wp-hook.php on line 355