Hello everybody!

I just started Gothic 2 NotR couple of weeks ago, I'm not an expert and it's the first time I try this series.
The game is sometimes goofy and definetely hard (any beast is a challenge, and 10LP is nothing to improve your skills) but still, I was really enjoying the atmosphere and the plot!

Now this thing happened: I am at the beginning of chapter 2, just killed Dexter and talked to Vatras. I then ask ed to join the Ring of water and he gave me the Ring I will have to show at the tavern.
I have only 15 mana. When I need it for specific enemies I increase it by 5 and 10 with two rings, and then by other 20 by the "Mage mace" (can't remember the exact name), so that in the end I have a 45 mana which allow me to do a 3 in a row fireballs.

But I just found out, with no clear reason, my mana skills went negative! If I unequip all the rings I have a minus 10 mana. I don't need to say that it's quite frustrating...especially since I don't know the reason of that and I think it could happen other times.

I checked if there were other topic about it but I didnt' find any!

Thanks for your help!