Fatal error: Uncaught Error: Class 'Zend_Log_Writer_Abstract' not found in C:\MANTUM\xampp2\htdocs\MNT\ventasvariables\libreria\Zend\Log\Writer\Firebug.php:44
Stack trace:
#0 {main}
  thrown in C:\MANTUM\xampp2\htdocs\MNT\ventasvariables\libreria\Zend\Log\Writer\Firebug.php on line 44