Ok
can't report bug
You won't be able to review a game someone else reviewed, if you have otherwise used your daily review. It's possible that games you reviewed before that feature was implemented can't be viewed without using the daily use.
As to the bug report feature, where does it stop working? Do you get the support feature to load?
there was a bug which doesn't let me view if I have reviewed a game in the game history page, and when I went to report it, no matter how many times I clicked it it just wouldn't work.