I hope this is only a proof of concept. The vApp version of vCloud Director is only intended for trial purposes. Also, you shouldn't have to re-run the configure script a second time for an issue like this. vCloud just reads the configurations out of global.properties.
What I would focus on is the Oracle XE database startup.
relevant log files would be cell.log and vcloud-container-debug.log (note that these do have IP addresses and other info in them if you choose to share them.)