Installed this mod on my server, now when i change map or after a little while on a map this error pops up in the log:

[ 3.592] Worker 00 : Loading 'maps/ns2_tram.level'
[ 3.793] Worker 13 : Error: Unable to open 'models/effects/frag_metal_01.model' (usage 0x1)
[ 4.574] Worker 00 : Error: Unable to open 'models/dev/dev_sphere.material' (usage 0x1)
[ 4.830] Worker 13 : Error: Unable to open 'models/effects/halo_rounded_blue.model' (usage 0x1)
Loading pathing mesh for level maps/ns2_tram.level
Finished loading 'maps/ns2_tram.level'
[ 6.073] Main : Error: The message ShineCustomVote was already hooked, old hook will be replaced
[ 6.073] Main : Error: The message VoteChangeMap was already hooked, old hook will be replaced
[ 6.073] Main : Error: The message VoteRandomizeRR was already hooked, old hook will be replaced
[ 6.073] Main : Error: The message VotingForceEvenTeams was already hooked, old hook will be replaced
[ 6.073] Main : Error: The message VoteKickPlayer was already hooked, old hook will be replaced
[ 6.074] Main : Error: The message VoteResetGame was already hooked, old hook will be replaced
[ 6.733] Main : 76.20.120.85:59043 : Ack 204 utside sequence window 255 - 127


and the last line spams forever.