after several uninstalls and reinstalls of community builder and pretty much everything it's working. And in answer to your question ref DOCUMENT_ROOT YES it does have a slash at the end:
Hello, i have a problem when i try to log in into the joomla(phpbb)
appear the follow error:
Fatal error: Call to undefined function: encode_ip() in /membri/terraeliberta/components/com_comprofiler/plugin/user/plug_phpbbconnector/phpbbconnector.php on line 138