God! The rhinoceros and elephants in my server are gone! ! !Help me!

Hi, guys!
I tried to build the server myself, it succeeded! With the DecudaredServerLauncher tool, yes, it’s great!
But there have been some problems and I want to ask everyone for help.
The first time I ran the service, I saw that there were some animals in the G7 area of the game. Then I suddenly stopped the power, restarted the server to run the software, and entered the game again. I found that there were no animals in the area, and there were no corresponding animals. Only antelopes, no rhinos and elephants, why is this?
(I have tried reinstalling the game server related software, still the same, what should I do?)

u got some old ■■■ map, why u dont have volcano on above?