Sim city build

After being a long time player,  I had 4 large cities on the go .A happiness rate of 98% on all of them ,plenty of simcoin to play with and a decent amount coin in the bank took a lot of time and patients to get there and over night all my cities turned red the happiness rate went to 30%, I no longer have simcoins or coin in the bank and the game is pretty much unplayable. Going to be uninstalling game from phone,just a money grab from EA thanks for ruining a great game.