Problems with the dough

I made a recipe for basicly chocolate bread (pangoccioli) but the dough looks way to liquidy and sticky, i had problems just trying to form the little balls that the bread is supposed to be for the second rising period, i followed everything to the letter so i dont know what could have caused it.

Here is the recipe: 500g flour 250ml milk 25g brewer's yeast 2 eggs 75g butter 75g sugar 250g chocolate 9g salt