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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 /var/www/vhosts/h205339.web33.alfahosting-server.de/html/Notenliste/pdf.php:41 Stack trace: #0 /var/www/vhosts/h205339.web33.alfahosting-server.de/html/Notenliste/pdf.php(41): mysqli->query('SELECT * FROM ...') #1 /var/www/vhosts/h205339.web33.alfahosting-server.de/html/Notenliste/pdf.php(92): PDF->LoadData() #2 {main} thrown in /var/www/vhosts/h205339.web33.alfahosting-server.de/html/Notenliste/pdf.php on line 41