We have started to clean up our maps that have structures with expired timers and abandoned dinos. If you do not want to lose your stuff, please log in and reset the timers on all your structures. When we see a large structure with an expired timer we are doing a tribe kill all command so you will lose everything for that tribe. So again, please log in and reset your timers before they expire to avoid any heart ache. Once dinos and structures are gone there is no getting them back. I would also recommend destroying any unused structures across the map, especially if they are far from your main base as to not get your main base accidentally destroyed.