Build a project table database GIT2

I have no words. There are still some problems. Currently, the .sql file is missing and I haven’t typed anything. I just refreshed the window and the file is gone. Another thing, when trying to add commit, a pop-up message appears: “periodic_table does not have a commit checked out”. I just created the periodic_table folder and typed “git init”. That’s all. I can’t move on.


Currently, I was able to upload the .sql file from my computer, but I still don’t know what to do with this message: " periodic_table does not have a commit checked out ”

I need to add a (git add) folder with a hidden .git file