Weird error in daily reports, could someone interpret this....

I am running FreeBSD 11.1-RELEASE-p1 with a customized kernel (NAT compiled into it).

I have setup ssmtp to send me the daily, weekly etc reports and over the past few days I have been receiving a strange error in the security run output.

Checking setuid files and devices:

Checking negative group permissions:

Checking for uids of 0:
root 0
toor 0

Checking for passwordless accounts:

Checking login.conf permissions:

paranoia ipfw denied packets:

paranoia kernel log messages:

paranoia login failures:

paranoia refused connections:

Checking for packages with security vulnerabilities:
Database fetched: Wed Oct  4 03:25:11 AEST 2017
pkg: vulnxml parsing error: not well-formed (invalid token)
pkg: cannot process vulnxml

-- End of security output --

I have looked on the net but there doesn't seem to be much information about this error. Can anyone help?

Thanking you in advance,
Once again you have come through for me SirDice. Just had to do the audit and everything works fine now.