HHVM error log, Case insensitive constant names are not supported in HipHop in

My Error log is filling up and giving me these db errors. ill copy and paste them below, as well as my server stats
Server Stats:
Server Info: nginx/1.9.9
PHP Version: 5.6.99-hhvm
MySQL Version: 5.5.5

[Tue Feb 2 15:46:42 2016] [hphp] [18386:7f1d2bfff700:227:000005] [] [WPMUDEV API Warning] No remote data found for project 172
[Tue Feb 2 15:46:42 2016] [hphp] [18386:7f1d2bfff700:227:000006] [] [WPMUDEV Site Warning] No remote data found for project 172
[Tue Feb 2 15:47:44 2016] [hphp] [18386:7f1d157ff700:144:000001] [] \nWarning: Case insensitive constant names are not supported in HipHop in /www/footsolutions_939/staging/wp-content/plugins/appointments/appointments.php on line 4534
[Tue Feb 2 15:47:44 2016] [hphp] [18386:7f1d157ff700:144:000002] [] \nWarning: Case insensitive constant names are not supported in HipHop in /www/footsolutions_939/staging/wp-content/plugins/appointments/appointments.php on line 4535
[Tue Feb 2 15:47:44 2016] [hphp] [18386:7f1d157ff700:144:000003] [] \nWarning: Case insensitive constant names are not supported in HipHop in /www/footsolutions_939/staging/wp-content/plugins/appointments/includes/class_app_addon_helper.php on line 6
[Tue Feb 2 15:47:44 2016] [hphp] [18386:7f1d157ff700:144:000004] [] \nWarning: Case insensitive constant names are not supported in HipHop in /www/footsolutions_939/staging/wp-content/plugins/appointments/includes/class.gcal.php on line 15
[Tue Feb 2 15:48:00 2016] [hphp] [18386:7f1d3a3ff700:228:000001] [] \nWarning: Case insensitive constant names are not supported in HipHop in /www/footsolutions_939/staging/wp-content/plugins/appointments/appointments.php on line 4534
[Tue Feb 2 15:48:00 2016] [hphp] [18386:7f1d3a3ff700:228:000002] [] \nWarning: Case insensitive constant names are not supported in HipHop in /www/footsolutions_939/staging/wp-content/plugins/appointments/appointments.php on line 4535
[Tue Feb 2 15:48:00 2016] [hphp] [18386:7f1d3a3ff700:228:000003] [] \nWarning: Case insensitive constant names are not supported in HipHop in /www/footsolutions_939/staging/wp-content/plugins/appointments/includes/class_app_addon_helper.php on line 6
[Tue Feb 2 15:48:00 2016] [hphp] [18386:7f1d3a3ff700:228:000004] [] \nWarning: Case insensitive constant names are not supported in HipHop in /www/footsolutions_939/staging/wp-content/plugins/appointments/includes/class.gcal.php on line 15