Why can't I login into my account?
Lol maybe you have caps lock on? the problem might be at your end, i logged-in without any problem.
Nope it wasn't on my side. Yesterday I was using my parents account and after 2 hours when I returned from outside, I saw my session was automatically expired. So I tried to login into my account and it said unauthorized. So I posted "why can't I login into my account". Today I woke up and tried to signin again and it's working perfectly fine now.
it could be something else, but high probabilities that issue was on your side, but if it is working there is nothing to worry about, at least it repeats it again