Strange. Saturday afternoon, a workshop, a residence, the martial monestary, the fairy portal and all the farms disappeared and I never got them back, no matter what I tried. I was building a new cultural building on sunday or monday and that one disappeared during the building process. I don't understand why some people got some buildings back, while mine never came back. I emptied cache, my flashplayer and such is up to date, I really don't know what else to do, except wait for the fixing.