Fatal error: Uncaught TypeError: Unsupported operand types: string - int in /home/sigesaf/public_html/php/nomina/lista_pagos.php:77 Stack trace: #0 /home/sigesaf/public_html/php/nomina/lista_pagos.php(65): MesString('') #1 {main} thrown in /home/sigesaf/public_html/php/nomina/lista_pagos.php on line 77