You may notice that a site is flapping down many times in a couple of hours and would like to know the reason.
Please create a ticket so the support team can evaluate what is causing the issue and provide a solution.
Escalate the ticket to the Professional Services team. In some cases, a core dump shows a message such as "Cannot access memory at address 0x120ba8d49f87593". It indicates a hardware failure on the memory that must be solved by the hardware support.