The Rat Problem quest chain doesn't affect the rest of the game, maybe just a few dialogues in certain moments but nothing important. The only major content that event has right now is the NPC Scraps, the rest is still WIP.
Let's go step by step.
1 - You need to finish the quest Othra gave you, which seems to be "Subjugation of Libido". Simply craft 7 Restrain Potion (Strong) and give them to her.
2 - Every time you complete a quest, go talk to Othra and Roth and exhaust their new dialogues. Roth is not necessary, but do it just in case.
3 - Then Othra will give you the quest "Lost Acolytes". You need to find some acolytes around the map. The first one can be found when the warriors return to the ruins. The second is in the pond of the forest, the one with the nymph, but only at daytime. The last one is in the swamps, just spam "Look around" and you'll find her.
4 - Talk again with Othra and you'll unlock the Forgotten Temple in the swamps, which you have to visit several times to continue the event.
Thanks a lot.
About the quest that Othra gave me I remember that you told me once, that I have to learn the Restrain Potion from Bernard's quest but it shows nothing only to kill a bat and wolf, or do I have to do it more?
Or is it just about the time in the game cause only 58 days pass? I have to wait more or I can do it now?
I'm sorry you told me once and it really helpful cause it help me let go through it but now I just restart a whole new game and I really don't understand what I do wrong or what I missing or I'm just overthinking because the game won't tell me about that and because game usually tells when you have to wait or what time you have to do. the game is perfect but I'm so dumb.
anyway thank you so so much
UPDATE -
now I have passed those quests already
I don't know these things is linked up together or not but first
I go back to accept the bat and wolf quest from Bernard that I've done many times
second I found that Restrain Potion quest from Bernard showed up on the 60th day.
Maybe this could help someone and I hope so.
Anyway thank you again for all of you guys support