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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 MariaDB server version for the right syntax to use near '' at line 1 in /var/www/reyestienda/html/sistema/vendedor/alfanet/venta/Venta.php:83 Stack trace: #0 /var/www/reyestienda/html/sistema/vendedor/alfanet/venta/Venta.php(83): mysqli_query() #1 /var/www/reyestienda/html/sistema/vendedor/alfanet/venta/pdf.php(15): Venta::edit() #2 {main} thrown in /var/www/reyestienda/html/sistema/vendedor/alfanet/venta/Venta.php on line 83