I just noticed these errors in the log:
[Wed Mar 25 00:33:32.405825 2015] [:error] [pid 17065] [client x.x.x.x:53674] PHP Fatal error: Class 'IPS\\Application' not found in /var/www/html/forum/applications/autowelcome/Application.php on line 14
[Wed Mar 25 13:12:07.644775 2015] [:error] [pid 4101] [client x.x.x.x:64158] PHP Fatal error: Class 'IPS\\Application' not found in /var/www/html/forum/applications/autowelcome/Application.php on line 14
[Wed Mar 25 19:10:11.775570 2015] [:error] [pid 4102] [client x.x.x.x:41763] PHP Fatal error: Class 'IPS\\Application' not found in /var/www/html/forum/applications/autowelcome/Application.php on line 14
[Thu Mar 26 01:08:55.982593 2015] [:error] [pid 14568] [client x.x.x.x:49370] PHP Fatal error: Class 'IPS\\Application' not found in /var/www/html/forum/applications/autowelcome/Application.php on line 14