Ok, it was the visit Dagbor bit that sounded bugged, but things seem ok from your logs and you shouldn't be invited to Dagbor anymore.
The Civil Unrest quest is the end of the Men vs Men quest line, it will keep looping and give you a different target.
There are a few more quests after The Root of the Rout in the Men vs Elves quest line. Once you get to a quest called Continuing Conflict it will loop like Civil Unrest, giving you different targets to attack.
There are also more quests after Where Humans Fear To Tread in the Men vs Orcs quest line. Ever Eager For Battle is the looping quest at the end of that line.
So, basically, you need to conquer Uttal Atros and Ral Nistro to get more quests. Invite another player to help you if you can't do it on your own, they don't have to be doing the same quest (or even the same race), any player will do.
You might also be interested in playing as Orcs or Elves, they have their own quest storylines to complete.