Fatal error: Uncaught TypeError: Unsupported operand types: string - int in /home/u889228275/domains/benderstore.com/public_html/Controllers/Principal.php:121 Stack trace: #0 /home/u889228275/domains/benderstore.com/public_html/index.php(28): Principal->categorias() #1 {main} thrown in /home/u889228275/domains/benderstore.com/public_html/Controllers/Principal.php on line 121