HELP!!!! With a Panasonic DMR-E85H

I need some help with the above mentioned recorder. I tried to record a program tonight. It wouldn't work. So, I succeeded in stopping the attempted record. I then went into the Directional Navigator to erase a show. It got part way through and stopped. I tried to hit return and get out, but it wouldn't do anything. I finally turned it all off. When I turned it back on, all of the Directional Navigator is blank. Can someone tell me how to get the recordings back? And quick? Thanks!