@baris Thanks - that's a good point actually. I might have some custom CSS or something in the headers that points to that. I'll check.
EDIT: That was it. Removed that folder and subfolders, and we're good
@01 "it won't open" isn't very descriptive. What is it actually doing? Screenshots are very helpful to convey that info.
What is your nginx config? Where did you get your https certificates? Have you been following a guide, and if so, which one?