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Fatal error: Uncaught ArgumentCountError: mysqli_error() expects exactly 1 argument, 0 given in /var/www/feriados/public_html/db.php:87 Stack trace: #0 /var/www/feriados/public_html/db.php(87): mysqli_error() #1 /var/www/feriados/public_html/views/dolar-hoy/1.php(28): db->query() #2 /var/www/feriados/public_html/routes.php(225): include_once('...') #3 /var/www/feriados/public_html/index.php(143): include_once('...') #4 {main} thrown in /var/www/feriados/public_html/db.php on line 87