Please help: Nathaniel Mod (v 4.4) does not work correctly

The mod can be installed, but it doesn't work correctly, the following issues occur:
1) I can't initiate a dialogue with Nathaniel, which I should be able to do. There would be a lot of dialogue available, and I am not sure if you can romance him or have a complete friendship with only the conversations which he initiates.
2) He takes 4 damage when my party first meets him, whenever I load a savegame and whenever his unique katana is equipped.
I've tried to contact the creator of this great mod, but she cannot be reached, there has been virtually no activity in the mod forum for months. So if you have played the mod as well and/or have found a way to circumvent these issues, especially the first one, please let me know.