ForeverMap North America Lite v2.1

Tried online download of maps and via SD; both methods failed. The App crashed. Black screen and then exited. Try to relaunch many times; same crash. Have to wipe the data in order for App to saty on but then I can't download any maps! I have plent of memory in the SD card. I directed the maps to be stored on SD instead of phone; don't know that will make any difference. It shouldn't.

Please help.