I'm having the same issue.
load_apparmor_profile: 979 Invalid argument - Failed to mmap old profile from /var/lib/lxc/206/apparmor/lxc-206_<-var-lib-lxc>
apparmor_prepare: 1086 Failed to load generated AppArmor profile
lxc_init: 876 Failed to initialize LSM
__lxc_start: 2027 Failed to...