Yes, this is a known issue for OTM installations. To resolve, just edit the httpd.conf file for Apache and/or rptapache. These will be located here:
$OTM_HOME/apache/conf/httpd.conf
$OTM_HOME/rptapache/conf/httpd.conf
Find the following lines, and update the username / group as necessary to match your server configuration:
Code:
User otmuser
Group otmgroup
--Chris