pvpgn error

Hello guys, i dont know what exactly i have to do... I use server files pvpgn-master plain. Not sure when this happen, and this error still allow me to play. Help me please.

I got this error:
Nov 27 22:18:56 [error] pvpgn::host_lookup: could not lookup host "bntrack.darkwings.org"
Nov 27 22:18:56 [error] pvpgn::addr_create_str: could not lookup host "bntrack.darkwings.org"
Nov 27 22:18:56 [error] pvpgn::addrlist_append: could not create addr
Nov 27 22:18:56 [error] pvpgn::addrlist_create: could not append to newly created addrlist
Nov 27 22:18:56 [error] pvpgn::list_destroy: got non-empty list
Nov 27 22:18:56 [error] pvpgn::bnetd::tracker_set_servers: could not create tracking server list

Then flood...
Nov 27 22:56:56 [error] pvpgn::list_get_length: got NULL list
Nov 27 22:57:56 [error] pvpgn::list_get_length: got NULL list
Nov 27 22:58:56 [error] pvpgn::list_get_length: got NULL list
Nov 27 22:59:56 [error] pvpgn::list_get_length: got NULL list
Nov 27 23:00:56 [error] pvpgn::list_get_length: got NULL list
Nov 27 23:01:56 [error] pvpgn::list_get_length: got NULL list
Nov 27 23:02:56 [error] pvpgn::list_get_length: got NULL list
Nov 27 23:03:56 [error] pvpgn::list_get_length: got NULL list
Nov 27 23:04:56 [error] pvpgn::list_get_length: got NULL list
Nov 27 23:05:56 [error] pvpgn::list_get_length: got NULL list
Nov 27 23:06:56 [error] pvpgn::list_get_length: got NULL list
Nov 27 23:07:56 [error] pvpgn::list_get_length: got NULL list
Nov 27 23:08:56 [error] pvpgn::list_get_length: got NULL list
Nov 27 23:09:56 [error] pvpgn::list_get_length: got NULL list
Nov 27 23:10:56 [error] pvpgn::list_get_length: got NULL list