I'm running Community Builder with Joomlaboard. Yesterday morning I logged into the forum and the main forums page showed the proper handful of subforums each with numbers indicating that there were at least a dozen posts in each as expected (the forum has been up-and-running for months). However, clicking on any one of the subforums displays:

>> There are no topics in this forum yet <<

The forums were working properly the day before and no configuration changes were made. Everything looks normal from within the Joomla control panels. Is this evidence of a security breach? Is it evidence of database corruption?

I've searched this board and Google and haven't found a relevant solution. I'm quite at a loss as to what could have happened and would greatly appreciate any guidance you could provide. Thank you very much.