Thank you for sharing the Support tool information. We just saw this error message in the Apache's log
[Mon Nov 26 07:24:50.475260 2018] [:error] [pid 15494] [client 22.214.171.124:23224] PHP Fatal error: Cannot redeclare class Mage_Page_Block_Html_Head in /opt/bitnami/apps/magento/htdocs/app/design/frontend/default/MAG060076/template/page/html/head.phtml on line 527
[Mon Nov 26 07:24:50.798537 2018] [core:notice] [pid 14082] AH00051: child pid 15494 exit signal Segmentation fault (11), possible coredump in /opt/bitnami/apache2
As you can see, it seems there is something wrong in Magento, did you change something lately?
To debug Apache's issues, please follow this guide