Multibit transactions unconformed since august. Where is my money?
Probably it's due to a low fee. If you see the TX in blockchain.info or similar, you can view the satoshis per byte you paid for fee. Today (12Dec17), it's recommended to pay at least 100 satoshis per byte.

To try to fix your problem, you can reset multibit by clicking on Tools &gt; Reset Blockchain and transactions, and wait to re-sync, as seen here

Hope it helps you