Today I wanted to create rating. A added all I need, saved and then I saw bug window on cf. Who had fixed it before?
I caught similar bug after rollback of correction in blog.
Ps: Ping geranazavr555.
UPD: second part was solved: I log out and then log in in account. First part is not solved yet.
UPD: first part is provlem with SPbSU contest on codeforces.