When did you last take a look at which reports you have enabled? Maybe you need to enable the exact report that provides the wished reporting? On your roles you can select the reports you have enabled in the system administration.
You should do a check once in a while to make sure you have activated the right reports, so you make sure that you have the right reporting options for your business.
You do this in the System administration -> Reports -> Enable reports. You can link the reports to the different roles in the system. This enables you to differentiate the view of reports, so your colleagues only see the reports that are relevant for them.
In the role setup in the System administration -> Employees -> User roles and rights management -> Select role and look under Areas, all reports in the system are shown, and you can only select the ones you have enabled under Enable reports. If you have not enabled a report, it will be greyed out, and you will not be able to mark the checkbox next to it.
Here you activate the reports that are relevant for you to use.