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Fatal error: Uncaught mysqli_sql_exception: Incorrect DATE value: '' in /home/levikolb/public_html/infost440/assignment11/handle_date_range.php:9 Stack trace: #0 /home/levikolb/public_html/infost440/assignment11/handle_date_range.php(9): mysqli_query(Object(mysqli), 'SELECT * FROM `...') #1 {main} thrown in /home/levikolb/public_html/infost440/assignment11/handle_date_range.php on line 9