I think I encountered the same bug at the same time. I haven't succeed seducing any girls when fighting with Edwarda, Grunt, and so on, after about 1000 fights. I am so impatient that I thought it must be a programming bug.
It has been lasting for about two weeks that in my activity the contests was always showing "there will be a new contest in such as 1d15h", but after the time reached the contest did not refresh and again it showed "there will be a new contest in 23h, for example".
I think it would be a bug.