Not sure this explains your particular issues but: Dom0 error: https://groups.google.com/forum/#!searchin/qubes-users/22rip%7Csort:date/qubes-users/NSVB-s1zHCI/U-HCRz5uFAAJ
Fedora 28 error: https://groups.google.com/forum/#!searchin/qubes-users/fedora$2028$20error$20update%7Csort:date/qubes-users/gKxaTiQ3iZg/t9b38WvuDgAJ -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to qubes-users+unsubscr...@googlegroups.com. To post to this group, send email to qubes-users@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/2219225c-c80d-4e2c-b504-3f4f675e4067%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
