we released updated versions yesterday that should address these errors:
Free tools 1.0.8
Design Extrender 1.1.7
Data Bridge 1.1.6
make sure these are the versions you have installed. if you have previous versions, uninstall them from the extension manager and install the latest ones.
after installing in the extension manager, open DW, then open a PHP page. this should trigger the WA Installer to finish the installation. After it is finished, restart DW.