Last night, our ESXi host suddenly crashed. Vsphere stopped responding and the host went down. When I restarted the physical server, it came back up saying that "The system found a problem with your machine and can't continue. Unable to load multiboot modules: Bad Parameter" I need to get this system back up as soon as possible, so I'm thinking of reinstalling the host, or upgrading to ESXi 5.5. Will this help? Is anyone familiar with this issue?