Problem With The Quest

I went through the Misadventure in the Sea quest, and when I had to explore the hold and kill the rats, but when I killed the rats, one of them (Giant Rat) flew away through the textures, and I could not kill her, I logged into the server and did everything that it is possible, in the end I registered / kill and ended up in Nemracte, but I can't go through the quest again, what should I do?

(I am Russian and could write with errors, do not judge strictly)

 

In Nemract, the pier where the boat left from should have a boat saying 'Click to return to the boat' or something similar.

 

Thanks a lot for your help