Pvp server has decay error after restart

My server is a PVP server. The server is having decay time issues. Every time I restart the server, the decay time returns to the original. Players in the temple turned on server have more than 1 week of time left. One more problem the server age is always 0. Can someone guide me how to fix this? Please!

Server’s Name : [PVP] DatViet Harvest x3 No God
Discord : discord.gg/5rVANGjW8C

The current server has more than 30 players. Player limit is 50