Fatal error: Uncaught mysqli_sql_exception: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1 in /opt/bitnami/apache/htdocs/functions.php:70 Stack trace: #0 /opt/bitnami/apache/htdocs/functions.php(70): mysqli_query() #1 /opt/bitnami/apache/htdocs/chatbot.php(6): query() #2 {main} thrown in /opt/bitnami/apache/htdocs/functions.php on line 70