[turba] Error with Ldap.php

[Hanns Mattes]

Hi,

I've got a lot of errors in horde.log:

2013-06-01T12:49:00+02:00 WARN: HORDE [turba] PHP ERROR: Invalid argument supplied for foreach() [pid 28002 on line 495 of "/srv/www/htdocs/horde/turba/lib/Driver/Ldap.php"]
2013-06-01T12:49:00+02:00 WARN: HORDE [turba] PHP ERROR: Invalid argument supplied for foreach() [pid 28002 on line 495 of "/srv/www/htdocs/horde/turba/lib/Driver/Ldap.php"]
2013-06-01T12:49:00+02:00 WARN: HORDE [turba] PHP ERROR: Invalid argument supplied for foreach() [pid 28002 on line 495 of "/srv/www/htdocs/horde/turba/lib/Driver/Ldap.php"]
2013-06-01T12:49:00+02:00 WARN: HORDE [turba] PHP ERROR: Invalid argument supplied for foreach() [pid 28002 on line 505 of "/srv/www/htdocs/horde/turba/lib/Driver/Ldap.php"]
2013-06-01T12:49:00+02:00 WARN: HORDE [turba] PHP ERROR: Invalid argument supplied for foreach() [pid 28002 on line 505 of "/srv/www/htdocs/horde/turba/lib/Driver/Ldap.php"]

As far as I can see turba is working fine (and therefore I can't say,
when it started to show the warning). The error occurs, when I list
contacts. Is it safe to ignore the warning or is there anything, I
should investigate?

Regards Hanns