Here is what actually happened. Give Me Coins (give-me-coins.com) is one of the largest Litecoin mining pools (about 14% of the Litecoin network). The LTC Payment Address parameter in pool user accounts settings has been reset by hackers. The parameter defines the user wallet's address to send the accumulated earnings from the mining. The earnings have been withdrawn from some accounts. The pool operators stated that they temporary disabled all the payouts, and the pool will compensate for any stolen Litecoins.