nfsen - web interface

[fw-dump]

I installed nfsen it is not possible to run web interface. Error listing:
Useless use of private array in void context at /usr/local/libexec/nfsen/NfSenRRD.pm line 287.
Useless use of a constant ("--imgformat") in void context at /usr/local/libexec/nfsen/NfSenRRD.pm line 287.
Useless use of a constant ("PNG") in void context at /usr/local/libexec/nfsen/NfSenRRD.pm line 287.
Useless use of a constant ("--title") in void context at /usr/local/libexec/nfsen/NfSenRRD.pm line 287.
Useless use of a constant ("--vertical-label") in void context at /usr/local/libexec/nfsen/NfSenRRD.pm line 287.
Useless use of a constant ("--start") in void context at /usr/local/libexec/nfsen/NfSenRRD.pm line 287.
Useless use of a constant ("--end") in void context at /usr/local/libexec/nfsen/NfSenRRD.pm line 287.
Useless use of a constant ("-w") in void context at /usr/local/libexec/nfsen/NfSenRRD.pm line 287.
Useless use of a constant ("576") in void context at /usr/local/libexec/nfsen/NfSenRRD.pm line 287.
Useless use of a constant ("-h") in void context at /usr/local/libexec/nfsen/NfSenRRD.pm line 287.
Useless use of a constant ("200") in void context at /usr/local/libexec/nfsen/NfSenRRD.pm line 287.
Useless use of private array in void context at /usr/local/libexec/nfsen/NfSenRRD.pm line 287.
Useless use of string in void context at /usr/local/libexec/nfsen/NfSenRRD.pm line 287.
Useless use of string in void context at /usr/local/libexec/nfsen/NfSenRRD.pm line 287.
Useless use of string in void context at /usr/local/libexec/nfsen/NfSenRRD.pm line 287.
Useless use of string in void context at /usr/local/libexec/nfsen/NfSenRRD.pm line 287.

Thanks a lot!
EDIT: nfsen of course

[mimugmail]

Nfsen is not used within OPNsense?

[fw-dump]

nfsen
https://github.com/opnsense/ports/tree/master/net-mgmt/nfsen

[mimugmail]

Yes, I know nfsen, but OPNsense has Insight for Netflow. If you really want to use nfsen install it on an external system and send your netflows to it.

[fw-dump]

With Insight its not possible monitoring NAT :(

[mimugmail]

Then it would be better to export to an external system. OPNsense is not a full OS with support for every package. Seeing it's there via ports doesnt mean it just works (sadly)

[fw-dump]

netflow in opnsense does not support milliseconds. Its possible?
My sencod question: https://forum.opnsense.org/index.php?topic=12081.0