Are you getting any problem while using RVsitebuilder. to view debug information, use following steps.
1. SSH as a root to server and vim file /var/cPanel/rvglobalsoft/rvsitebuilder/var/{Server_IP}.default.conf.ini.php.Under [log], configuration to as below.
[log]
enabled=1
type=file
name=var/log/php_log.txt
priority=PEAR_LOG_DEBUG
2. Now run tail -f /var/cpanel/rvglobalsoft/rvsitebuilder/var/log/php_log.txt.
3. Try to access RVSiteBuilder and check the logs and try to figure out the problem.
Thats all.