Apparently the bolts holding the coolant system (all four of them) came loose and the collant system was rattling about inside the engine only held in place by the various hoses and pipes it runs to various parts. Eventually the rattling about poked holes in the various tubes and all the coolant leaked out so have to get a new coolant tank and pipes and once they are installed see if there is any further damage.
Thats rough on the Subaru! Three warning lights, thats nuts, This one I had is the only one I have ever seen on any of my cars. I think Iwould faint if I saw more than one at a time!