Call to a member function fetch_assoc() В чем ошибка?

Fatal error: Call to a member function fetch_assoc() on boolean in /home/u746696929/public_html/assets/includes/core.php on line 1998

while($row = $query->fetch_assoc()){

		$result[] = array(

			"id" => $row['id'], 

			"text" => $row['text']

		);