I'm starting a new site (still early days) and installed WP_Filebase and All-in-One Event Calendar (ai1ec).
They have worked OK on other sites UP TO NOW.
After updating WP_Filebase to version 0.2.9.21 on this site, however, the plugin gave the error here ...
After I reverted to version 0.2.9.17, it worked.
Is there a solution?
I'm not updating the other sites, yet. :-)
The same problem appears on this site, too ...