Hello. I have installed a OTRS with apt-get install on Debian Sarge, but I have a problem: "Invalid argument at /usr/share/otrs/bin/cgi-bin/../../Kernel/System/Log.pm line 156." when i'm login. The block of code around line 156 is: # write shm cache log if ($Priority !~ /^debug/i && $Self->{IPC}) { $Priority = lc($Priority); my $Data = localtime().";;$Priority;;$Self->{LogPrefix};;$Subroutine2;;$Line1;;$Message;;\n"; my $String = $Self->GetLog(); shmwrite($Self->{Key}, $Data.$String, 0, $Self->{IPCSize}) || die $!; } return 1; } # -- Thanks :)