Fatal error: Uncaught TypeError: Unsupported operand types: string - int in /home/macrowork/public_html/app/controlador/productosCon.php:47 Stack trace: #0 /home/macrowork/public_html/index.php(15): require_once() #1 {main} thrown in /home/macrowork/public_html/app/controlador/productosCon.php on line 47