Pretty much a common issue with MultiBit HD... there are at least 5 or 6 threads in here with the same issue
Additionally, KeepKey have effectively stopped all support and development of MBHD (
https://multibit.org/blog/2017/07/26/multibit-shutdown.html)
If you had the seed words, you could recover your coins really easily... but you say you don't have it... So I would suggest you attempt to use:
https://github.com/gurnec/decrypt_bitcoinj_seedThat python utility will help you extract the seed words from your wallet file... Once you have the seed words, I would suggest downloading the latest version of Electrum 2.9.0 and follow the videos on the multiBit blog post (
https://youtu.be/E-KcY6KUVnY) that shows how to import your MBHD seed into an Electrum wallet.
Also, why would you move coins from a hardware wallet like a Ledger Nano S to a software wallet like MBHD?
You shouldn't need to do that to use a hardware wallet!