I think you should read the first thread of this section :
Multibit is Deprecated - Stop using it. As stated by OmegaStarScream (2017):
The development team decided to stop developing the wallet and put their focus on their hardware wallet. The reason I'm making this thread is because a lot of people are not aware of this, even though the announcement happened almost three months ago. It's recommended to switch to Electrum If you want to stick with SPV and Lightweight wallets. If you don't, you may face issues and you won't receive any support in their GitHub or through email, this forum section will also be removed after a few weeks/months.
Is there any particular reason that compels you to try to use this wallet?