[pkg-horde] Bug#499370: horde3: HORDE [emergency] [horde] DB Error: extension not found: [DB Error: extension not found]

[root]

Package: horde3
Version: 3.1.3-4etch3
Severity: normal


I find permanently in /var/log/horde/horde3.log the following error message :

HORDE [emergency] [horde] DB Error: extension not found:  [DB Error: extension not found] ** Array 
[on line 1625 of "/usr/share/horde3/lib/Horde/DataTree/sql.php"]

But my horde3 seems to work correctly, I don't know exactly what is going wrong and it appears regularly even when no acting in horde interface, 
and even when none is logged in and when horde isn't open in any web browser, as if it was a background task which caused this.


-- System Information:
Debian Release: 4.0
  APT prefers stable
  APT policy: (500, 'stable')
Architecture: i386 (i686)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.18-6-686
Locale: LANG=fr_FR at euro, LC_CTYPE=fr_FR at euro (charmap=ISO-8859-15)

Versions of packages horde3 depends on:
ii  apache-ssl [httpd]      1.3.34-4.1+etch1 versatile, high-performance HTTP s
ii  apache2                 2.2.3-4+etch5    Next generation, scalable, extenda
ii  apache2-mpm-prefork [ht 2.2.3-4+etch5    Traditional model for Apache HTTPD
ii  libapache-mod-php5      5.2.0-8+etch11   server-side, HTML-embedded scripti
ii  libapache2-mod-php5     5.2.0-8+etch11   server-side, HTML-embedded scripti
ii  php-log                 1.9.8-1          Log module for PEAR
ii  php-pear                5.2.0-8+etch11   PEAR - PHP Extension and Applicati
ii  php4-pear               6:4.4.4-8+etch6  PHP Extension and Application Repo

Versions of packages horde3 recommends:
ii  logrotate                 3.7.1-3        Log rotation utility
ii  php-date                  1.4.6-1        PHP PEAR module for date and time 
ii  php-db                    1.7.6-2        PHP PEAR Database Abstraction Laye
pn  php-file                  <none>         (no description available)
ii  php-mail                  1.1.6-2        PHP PEAR module for sending email
ii  php-mail-mime             1.3.1-1.1      PHP PEAR module for creating and d
pn  php-services-weather      <none>         (no description available)
pn  php4-mcrypt               <none>         (no description available)
ii  php5-gd                   5.2.0-8+etch11 GD module for php5
ii  php5-mysql                5.2.0-8+etch11 MySQL module for php5

-- no debconf information