It always puts me world selection screen

When i try to play a household it does not lets me play. It always goes to world selecting screen.I tried creating new households. I can create new sims but i cant play with them. when i try to select house for them it does not let me choose nor play. after that my new created sims just dissapears. It always but always goes bact to world selecting screen. It stared to happening after I updating my game at 19 August. Please fix this i cant play the game.