Well, It took me a while to find what's wrong with that bug

I made a quick playthrough and I think I fixed it. I just hope everything works well now. But if the bug still presist let me know
Thanks for showing your appreciation

I had to remove the original Character list of the NPCs. What I'm thinking now is creating a list of the playable characters describing their class, type, specialization...etc.
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New Version
- Re-added a third character (A Necrolyte Hero) his mission is almost the same as the quest "Mysterious Warlock" of the early version (v1.0)
- Replaced "Fire Impact" ability of the Mage with Arcane Torrent.
- Fixed a bug which occur in the Hinterlands after the end cinematic.
- Replaced the two Archmage hero (The ones who drops a gem) in Agamand Mills with a Necromancer instead.
- Removed the ping on the plants in "Missing Ingredients" quest.
- Increased the Creep Respawn in Lordaeron Ruins to 10 minutes instead of 6 minutes.
- Increased the Neutral Hostile units damage and armor in Act Two.
Will write a complete changelog once I release version 2.1