First, try uninstalling and then reinstalling Armory from scratch.

Otherwise here is a solution, unfortunately it's not the best solution if you have a lot of addresses generated in Armory.

1. Start Armory in offline mode.
2. Open your wallet.
3. Click "Backup Individual Keys" on the right.
4. Copy the PrivBase58 keys into a Blockchain.info wallet using the "import private key" feature, one by one. You might need to remove the spaces from the key to get it to work.
5. Your funds will appear in the Blockchain wallet, and you can send them on their way.

There's probably a faster way than this, but it might be your easiest bet.