Help! Installation error

[fastyzfr1]

I have looked many different places for this issue. Please help me as to what I need to do to complete the installation. I am using Centos 5.3. Here is my error on installation...

DEBUG: push_el() sub_name: sys_command('/bin/cp -p /etc/ispcp/postfix/ispcp/aliases /etc/ispcp/postfix/ispcp/domains /etc/ispcp/postfix/ispcp/mailboxes /etc/ispcp/postfix/ispcp/transport /etc/ispcp/postfix/ispcp/sender-access /etc/postfix/ispcp'), msg: Ending...
DEBUG: push_el() sub_name: sys_command(), msg: Starting...
DEBUG: push_el() sub_name: sys_command('/bin/cp -p /etc/ispcp/postfix/ispcp/aliases /etc/ispcp/postfix/ispcp/domains /etc/ispcp/postfix/ispcp/mailboxes /etc/ispcp/postfix/ispcp/transport /etc/ispcp/postfix/ispcp/sender-access /etc/ispcp/postfix/working'), msg: Ending...
DEBUG: push_el() sub_name: sys_command(), msg: Starting...
DEBUG: push_el() sub_name: sys_command('/usr/sbin/postmap /etc/postfix/ispcp/aliases /etc/postfix/ispcp/domains /etc/postfix/ispcp/mailboxes /etc/postfix/ispcp/transport /etc/postfix/ispcp/sender-access &> /tmp/ispcp-setup-services.log'), msg: Ending...
DEBUG: push_el() sub_name: sys_command(), msg: Starting...
DEBUG: push_el() sub_name: sys_command(), msg: ERROR: External command '/usr/bin/newaliases &> /tmp/ispcp-setup-services.log' returned '127' status !
DEBUG: pop_el() sub_name: sys_command(), msg: ERROR: External command '/usr/bin/newaliases &> /tmp/ispcp-setup-services.log' returned '127' status !
ERROR: External command '/usr/bin/newaliases &> /tmp/ispcp-setup-services.log' returned '127' status !