Mediawiki Error: Fatal error function selectRow

[joseph]

Fatal error: Call to a member function selectRow() on a non-object in /usr/local/apache/htdocs/mediawiki/includes/User.php on line 826
I just faced such issue recently, the solution is about your database:
- check whether it's running or not
- check your mediawiki database's status

The configuration details can be found in LocalSettings.php

## Database settings
$wgDBtype           = "mysql";
$wgDBserver         = "localhost";
$wgDBname           = "mediawiki";
$wgDBuser           = "wikiuser";
$wgDBpassword       = "**************";

[stev.martin88]

I install wiki software and it works well for a week but today I found this error while I tried to enter my web. Fatal error: Call to a member function selectRow() on a non-object in /mnt/w0000/d26/s42/b02921a0/www/wikithaigame.com/includes/User.php on line 829 I tried to find this line in user.php it is

$s = $dbr->selectRow( 'user', array( 'user_name','user_password','user_newpassword','us er_email',

Any advise for solving it? Appreciate any advise that can help.