Lina froze the whole Upper Hadar

[Riemumieli]

I entered Upper Hadar and Lina said something about the missing energy she requires. I went towards the machine that would charge her (she warned about monsters that I must fight), fought some monsters and clicked the thing. Nothing happened. Other areas (e.g. the pyramid) worked find. The next time I started the game nobody and nothing (expect for the alchemist shop) in Upper Hadar reacted to my clicks. I cannot talk to anybody, I cannot enter any buildings etc. The icons (question marks/castle icon) are there but nothing happens. Other areas seem to work fine. What to do other than start again or use previous saves since I use only quicksaves? Is there a way to refresh a location (probably not but it never hurts to ask)?

I noticed that someone else also had a problem with Lina and conversation gone bad. I wonder why this problems has not been solved as of yet.