I got no reward for completing the last mission.                                                                             

mission three is the last mission. i had to rescue a lady in the field. after that mission mullud says something like "i have no more missions yet. come back later."                                                   

I have killed the lady from mission two and i am at mission three now. don't know what me awaits, but mullud still don't talk (bug)...                                                   

you can go on further and the lady occured after a few minutes, but there is another problem. There is no converse option in the radial menu of the lady.                                                    

Its not totally broken.  The dialog is missing completly, but if you click the first box at the top where yes would normally be, it spawns a waypoint for a lady Hissaly or something.
I went to the waypoint and she was not there, but I dont know if it was because of DB lag or if that part is broken too                         

First part is fairly easy, take the pack from Mullud out to the waypoint he gives you and talk to they guy there, then go back to see Mullud for your reward.

After that though the text for the next job is broken and you can go no further. :(