Nagios Support Forum

We are seeing on most of our Nagios servers these PHP errors showing up, Our timezone in PHP.INI is set to: date.timezone = America/Phoenix

[07-Feb-2014 14:30:42] PHP Warning: simplexml_load_string(): Entity: line 1: parser error : Start tag expected, '<' not found in /usr/local/nagiosxi/html/includes/utils-backend.inc.php on line 27
[07-Feb-2014 14:30:42] PHP Warning: simplexml_load_string(): ERROR: NOT AUTHENTICATED in /usr/local/nagiosxi/html/includes/utils-backend.inc.php on line 27
[07-Feb-2014 14:30:42] PHP Warning: simplexml_load_string(): ^ in /usr/local/nagiosxi/html/includes/utils-backend.inc.php on line 27
[07-Feb-2014 14:30:42] PHP Notice: Trying to get property of non-object in /usr/local/nagiosxi/cron/sysstat.php on line 109
[07-Feb-2014 14:30:42] PHP Warning: Invalid argument supplied for foreach() in /usr/local/nagiosxi/cron/sysstat.php on line 109
[07-Feb-2014 14:31:01] PHP Warning: simplexml_load_string(): Entity: line 1: parser error : Start tag expected, '<' not found in /usr/local/nagiosxi/html/includes/utils-backend.inc.php on line 27
[07-Feb-2014 14:31:01] PHP Warning: simplexml_load_string(): ERROR: NOT AUTHENTICATED in /usr/local/nagiosxi/html/includes/utils-backend.inc.php on line 27
[07-Feb-2014 14:31:01] PHP Warning: simplexml_load_string(): ^ in /usr/local/nagiosxi/html/includes/utils-backend.inc.php on line 27
[07-Feb-2014 14:31:01] PHP Notice: Trying to get property of non-object in /usr/local/nagiosxi/cron/sysstat.php on line 109
[07-Feb-2014 14:31:01] PHP Warning: Invalid argument supplied for foreach() in /usr/local/nagiosxi/cron/sysstat.php on line 109
[07-Feb-2014 14:31:22] PHP Warning: simplexml_load_string(): Entity: line 1: parser error : Start tag expected, '<' not found in /usr/local/nagiosxi/html/includes/utils-backend.inc.php on line 27
[07-Feb-2014 14:31:22] PHP Warning: simplexml_load_string(): ERROR: NOT AUTHENTICATED in /usr/local/nagiosxi/html/includes/utils-backend.inc.php on line 27
[07-Feb-2014 14:31:22] PHP Warning: simplexml_load_string(): ^ in /usr/local/nagiosxi/html/includes/utils-backend.inc.php on line 27
[07-Feb-2014 14:31:22] PHP Notice: Trying to get property of non-object in /usr/local/nagiosxi/cron/sysstat.php on line 109
[07-Feb-2014 14:31:22] PHP Warning: Invalid argument supplied for foreach() in /usr/local/nagiosxi/cron/sysstat.php on line 109

Any ideas what could be the issue???

Those are simply warnings, not critical errors, apache is known to grab a lot of small warning messages and make them look like a bigger issue than they are, I believe we are working on our end to close this gap so that your error logs will be more verbose, and less annoying in XI 2014.