There is a resource on the DBL server which has been found to cause DBL server access issues with older versions of Paratext Lite. This then results in not being able to install resources from the DBL server.
If you upgrade your Paratext Lite to the current production version (18.104.22.168) in the Google Play Store you will have no issue accessing the DBL server to install new resources.
Thanks for your interest in Paratext Lite!
anon089134 (for the team)