[ZendTo] Errors on cron job of /opt/zendto/sbin/rrdInit.php

[Joao Alexandre]

Hi All,

I'm receiving the following from "Cron <root at zendto> /usr/bin/php
/opt/zendto/sbin/rrdInit.php /opt/zendto/config/preferences.php":

1,2
/usr/bin/rrdtool update /var/zendto/rrd/zendto.rrd 1326322800:2:2:1822.0

ERROR: /var/zendto/rrd/zendto.rrd: illegal attempt to update using
time 1326322800 when last update time is 1326495600 (minimum one
second step)
3
/usr/bin/rrdtool update /var/zendto/rrd/zendto.rrd 1326409200:1:1:555.7

ERROR: /var/zendto/rrd/zendto.rrd: illegal attempt to update using
time 1326409200 when last update time is 1326495600 (minimum one
second step)
4
/usr/bin/rrdtool update /var/zendto/rrd/zendto.rrd 1326495600:1:1:592.5

ERROR: /var/zendto/rrd/zendto.rrd: illegal attempt to update using
time 1326495600 when last update time is 1326495600 (minimum one
second step)

What's wrong?

I'm on version 4.08 with Debian Squeeze and I've enabled the library option.

Thanks in advance.

Regards,

Joao M. Alexandre