The most common reason for not seeing any report buttons is that you are logged in with administrator privileges. Admins cannot report from the front end (as they would effectively be telling themselves something they already know). You can create reports from the admin side however, and this is useful to keep a log of any unacceptable behaviour, perhaps in anticipation of one of your users reporting it in the future.
An easy way to check whether this is the reason you can’t see any report buttons, is to check any user profile for a (non-admin) member. If you can see a suspend button, you won’t see a report button.
The next most common reason, is that you have not enabled reporting for that particular activity type in the report settings. Please ensure you have checked each report type you wish to allow reporting for. If you want all activity types to be reportable, your settings should look like this:
If you have ticked all the relevant activity types, and have tried logging in as a standard member to see how the site looks without admin privileges, and the report buttons are still missing, please get in contact with us.