Hi, so I don't know if this makes much sense but for me, even if it takes me to the log-in page, I'm still logged in. Like all I need to do is press the "Mangago" button and it takes me to the homepage where I find out that I'm actually STILL logged in.
Just try pressing the Mangago button directly every time it brings you to log in page.
I seriously hope this helps because I was going bonkers at first when I didn't discover what was going on.

does anyone else also keep getting logged out right after logging back in, even during reading i press next chapter and it logs me out and puts me on a popup redirect for the ppl with no accounts like it just opens shein the app on my phone i probably got like my data stolen n shit but idc!!!! stop logging me out i’m tryna goon