dude [1] filed a orphan request for ntopng [2]:
It's been more than a year since the maintainer updated the package. It has been flagged out of date and multiple upstream versions have been released since then.
[1] https://aur.archlinux.org/account/dude/ [2] https://aur.archlinux.org/pkgbase/ntopng/
Request #10706 has been accepted automatically by the Arch User Repository package request system:
The package base has been flagged out-of-date since 2017-06-09.
aur-requests@lists.archlinux.org