Settings aren't changing

[tea-enjoyer11]

https://user-images.githubusercontent.com/128899868/227711850-42ea59aa-5308-49fe-b59b-c5bb4349ee1d.mp4
Hello,
today i wanted to start a book libary for my books that i've read.
(im following along with a tutorial on youtube)
I've got the book search plugin installed but for some reason my settings will get reset if i close the settings menu?
I linked a video for more context