Warning: mysqli_query(): (21000/1242): Subquery returns more than 1 row in /home/blini/www/php/data_main_queries.inc.php on line 450

Fatal error: Uncaught TypeError: mysqli_num_rows(): Argument #1 ($result) must be of type mysqli_result, bool given in /home/blini/www/php/data_main_queries.inc.php:452 Stack trace: #0 /home/blini/www/php/data_main_queries.inc.php(452): mysqli_num_rows(false) #1 /home/blini/www/php/structure_html_head.inc.php(6): require_once('/home/blini/www...') #2 /home/blini/www/php/structure_html_main.inc.php(11): require_once('/home/blini/www...') #3 /home/blini/www/index.php(2): include('/home/blini/www...') #4 {main} thrown in /home/blini/www/php/data_main_queries.inc.php on line 452