I've already tried requesting help there, still no luck.
Does this bring any light to the subject? Let us know if we should check for something else.
Code:
root@server [~]# tail -f /usr/local/cpanel/logs/error_log
Cpanel::Logd::scanbandwidth('', undef) called at /usr/local/cpanel/libexec/cpanellogd line 180
[2012-07-25 05:14:50 +0200] warn [cpanellogd] RRDs Error: /var/cpanel/bandwidth/multipli-smtp-peak.rrd: Died at /usr/local/cpanel/Cpanel/Logd.pm line 1356.
at /usr/local/cpanel/Cpanel/Bandwidth/RRD.pm line 119
Cpanel::Bandwidth::RRD::_rrdtool('last', '/var/cpanel/bandwidth/multipli-smtp-peak.rrd') called at /usr/local/cpanel/Cpanel/Bandwidth/RRD.pm line 110
Cpanel::Bandwidth::RRD::_call_rrdtool(Cpanel::Bandwidth::RRD=HASH(0x224e848), 'last', '/var/cpanel/bandwidth/multipli-smtp-peak.rrd') called at /usr/local/cpanel/Cpanel/Bandwidth/RRD.pm line 520
Cpanel::Bandwidth::RRD::last(Cpanel::Bandwidth::RRD=HASH(0x224e848), HASH(0x2144cb8)) called at /usr/local/cpanel/Cpanel/Logd.pm line 1313
Cpanel::Logd::updaterrdb('multipli', 'smtp', HASH(0x2933c88), 1343186090) called at /usr/local/cpanel/Cpanel/Logd.pm line 2003
Cpanel::Logd::parseeximlog('multipli', 1073741824, HASH(0x2f56f78), Cpanel::BandwidthDB=HASH(0x2f6d748), HASH(0x2fda458)) called at /usr/local/cpanel/Cpanel/Logd.pm line 870
Cpanel::Logd::updatebw('multipli', '/home/multipli', 818, 'multiplicatuexitoconinternet.com', 5242880000, ARRAY(0x212ca58)) called at /usr/local/cpanel/Cpanel/Logd.pm line 441
Cpanel::Logd::scanbandwidth('', undef) called at /usr/local/cpanel/libexec/cpanellogd line 180