still laying soft eggs

Hello, its my Hetty again with a problem, she has been laying softies for quite some time, it's about one every other day sometimes they look like an good egg but when you touch them they squash and go every where, but most of the time its early in the morning and they all have a yummy breakfast! She is on layers mash and she has broccoli, she seem fine in herself and the others are ok, what would be a good supplement for her as this has gone on so long?

Yes they have oyster grit, no food has changed since had them, and she used to lay every day.

Joyfull, I have just seen your advice given to Nicky d regarding limestone on grape, it sounds as if she is going through what i am with the girls! Regarding grapes my three go absolutely mad for them infact its like a rugby scrum do they think they are snails because of the texture? no one should get that excited about them
She was at the end of her first year when we got them in april.