I'm running a private tekkit classic server and I have other plugins on that are working but factions doesn't work it says do /help factions then it list one command /factions that doesn't work and i'm getting this message in the console.
[WARNING] [Factions v1.6.7] Non existing factionId 0 requested! Issuing cleaning!
2016-11-07 12:30:24 [INFO] [Factions v1.6.7] Reset faction data (invalid faction) for player ytg1
2016-11-07 12:30:24 [INFO] [PLAYER_COMMAND] ytg1: /help
2016-11-07 12:30:30 [WARNING] [Factions v1.6.7] Non existing factionId 0 requested! Issuing cleaning!
2016-11-07 12:30:30 [INFO] [Factions v1.6.7] Reset faction data (invalid faction) for player ytg1
2016-11-07 12:30:30 [INFO] [PLAYER_COMMAND] ytg1: /help factions
2016-11-07 12:31:01 [WARNING] [Factions v1.6.7] Non existing factionId 0 requested! Issuing cleaning!
2016-11-07 12:31:01 [INFO] [Factions v1.6.7] Reset faction data (invalid faction) for player ytg1
I just found out the fix if anyone else has this problem this version worked for me. https://dev.bukkit.org/bukkit-plugins/factions/files/38-1-7-5-beta/