This morning there was a major cliff collapse at St Bees, right at the start of the C2C walk (at a point locally known as the Old Swimming Pool).
As I understand it there is currently a very narrow path remaining, but this could change at any time if there is further collapse. This follows weeks of heavy rain, especially this last weekend (and more in the forecast).
Pending assessment of the situation the current advice is to avoid the area entirely (both the cliff top and the beach below) and find alternative routes.