You cant claim. When timer finish all is detroyed... Only you can get is items on boxes....If you was alone on the tribe you have a problem. I play solo but i have 2 characters on my tribe on diferents servers. To make this need help some friend. To give tribe when you move first character to other server. This nos replace your character but make safe your building and dinos... Better option at this moment is have a character for server and move items across obelisk and not transfer characters...
Sorry for you, this is like character are deleted for always... at moment you dowload a character on a server if server make rollback before you tranfer your character, its gone. Make a ticket and wait. They must have a copy all characters a server have, if server make rollback compare characters server vs copy and characters server not have put to dowload other time.