This:
It appears that a bug crept in at the last minute, which prevents Bibles and Images from being added to the service. If you currently use either of these features, please stick with either the previous beta release, or with version 2.4.6, which is the most current stable release. We hope to have a new release of OpenLP in a few weeks with this bug (and a few more) ironed out.
Taken from the blog page at OpenLP.org