"No block Source Available" biitcoin core 11.2

[bitplanet]

I am running bitcoin core v.11.2 for my mac.  I have been running it for yars, and now it will not let me verify the blockchain.  I'm stuck 13 weeks behind.
There are always at least 2 to 3 connections with the network, but no progress.
How can I get it to run the way it used to?

[achow101]

Can you post the debug log?

I think that you will probably have to reindex to fix this.