Ideally, the dough should be smooth, but if your dough has become sticky or thin, you can add a few tablespoons of flour to fix the issue. After that, mix and knead the dough to make it smooth. However, if the dough is not soft or dry, add a few drops of water and knead it again. After adding the water, you should knead until the water is completely absorbed in the dough. Make sure that the result of the dough should be soft.