Well, I didnt know there is already a Translation patch for russian, somebody must have put quite some work into it.

Maybe I can shed some light onto some of your questions:

1. Quest "Someone rubbed Lovis" from Roman.
dont mistake the Temple of Maxos with the Tower of Lovis, they are two different locations. The Tower of Lovis is the tall structure in the middle of the valley, and you have to explore it to resolve the quest.

The crystals you found at the temple belong to a different quest, you can find the last crystal also in the surroundings.

2. Ragnar is in the bandit's den, you'll find it in the south-east (follow the river). If you already have the PW you can enter it.

3. I dont exactly recognize this castle, do you mean the mine, where they use dynamite to blow up the entrance ?