I did a website based on php, and run it on railway. But when i try to register a user on the database on the website, it gives me this error:
Fatal error: Uncaught Error: Call to undefined function mysqli_connect() in /var/www/html/connection/connectionFactory.php:11 Stack trace: #0 /var/www/html/model/usuarioModel.php(6): connect() #1 /var/www/html/controller/usuarioController.php(11): cadastrar('Rayka', 'teste@example.c…', '44289d04bc55528…') #2 {main} thrown in /var/www/html/connection/connectionFactory.php on line 11
If you could help, I will appreciate it.

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