Hosting website

Hello evry one,

i would like to host my website but i ve got 2 messages:

<1> A PHP Error was encountered
Severity: Warning
Message: mysqli::real_connect(): (HY000/2002): No such file or directory
Filename: mysqli/mysqli_driver.php
Line Number: 201
Backtrace:
File: /home/vol11_1/byethost7.com/b7_27338861/htdocs/index.php
Line: 315
Function: require_once

<2>This one in french:

Une erreur de la base de données s’est produite.

Impossible de se connecter à la base de données en utilisant les paramètres fournis.
Filename: core/CodeIgniter.php
Line Number: 518

Thanks for your help!
Filskipis

This might help
1.https://stackoverflow.com/questions/29928109/getting-error-mysqlireal-connect-hy000-2002-no-such-file-or-directory-wh
2.use google translate https://kinsta.com/fr/blog/erreur-lors-de-la-connexion-a-la-base-de-donnees/

Thx for ur réactivity but i’m not using wordpress but codeigniter