I think this issue has been resolved in the latest version of the extension... however, updating the kcfinder version is a bit of a pain.
1) Reinstall the latest version of DataBridge
2) delete the webassist/kcfinder folder
3) add a file manager field to a blank page so that the webassist/kcfinder folder is re-created
4) upload the new webassist/kcfinder folder (you can delete the blank page you added it to)
If that doesn't work then you can send me FTP access and a URL to reproduce the problem and I can go in and debug it for you.