There are some acpi issues with kernel 4.14 onwards some what are refereed to as faulty bios's , and yours may be having a bigger impact than some.
I get acpi errors since 4.14 as well on my laptop, but not as bad as you are seeing with a crash.
try disabling acpi initially to see if this helps, thats what i found on one of the links to my errors (adding acpi=off' to /etc/grub2.conf )
it will mean that power profiles may not work, but it will help with a diagnosis.
ps there is one artical that suggests that it could be a vbox module issue, try removing virtualbox if you have it for now
and see if that helps
https://www.virtualbox.org/ticket/17267regards peter