Ошибка базы данных при активации нового пользователя

При регистрации нового пользователя ему приходит письмо с активационной ссылкой. При переходе по ссылке видим вот это:

Возникла проблема при работе с SQL сервером:

SQL error: Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)

SQL error code: 2002

Date: Saturday 27th August 2011 08:23:32 PM

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Date: Sat, 27 Aug 2011 20:23:32 +0000

Error: 2002 - Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)

IP Address: 83.243.71.142 - /index.php?&app=core&module=global§ion=login&do=autologin&fromreg=1

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.--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------.

| File | Function | Line No. |

|----------------------------------------------------------------------------+-------------------------------------------------------------------------------+-------------------|

| admin/sources/handlers/han_login.php | [login_external].authenticate | 665 |

'----------------------------------------------------------------------------+-------------------------------------------------------------------------------+-------------------'

| admin/sources/handlers/han_login.php | [han_login].loginAuthenticate | 316 |

'----------------------------------------------------------------------------+-------------------------------------------------------------------------------+-------------------'

| admin/applications/core/modules_public/global/login.php | [han_login].verifyLogin | 167 |

'----------------------------------------------------------------------------+-------------------------------------------------------------------------------+-------------------'

| admin/applications/core/modules_public/global/login.php | [public_core_global_login].autoLogin | 142 |

'----------------------------------------------------------------------------+-------------------------------------------------------------------------------+-------------------'

| admin/sources/base/ipsController.php | [public_core_global_login].doExecute | 302 |