No such file or directory /includes/class_core.php on line 1356

[postcd]

Hello, in vbulletin 4.2.5 i have received an error via e-mail:

Database error in vBulletin :

mysqli_real_connect(): (HY000/2002): No such file or directory
/home/myusername/domains/mydomain.com/public_html/includes/class_core.php on line 1356

MySQL Error :
Error Number :

This file should be there in this vbulletin version? Why it is not there, i upgraded to 4.2.5 quite recently.. what should i try to do to fix this please?

[Dave]

When the database connection function returns the "No such file or directory" error, it's usually caused by the hostname in the /includes/config.php file.

If it's set to "localhost", try changing it to "127.0.0.1".