I'm getting this error when booting up my server.

Please report this error to the mod author.
Error while running event exotic-space-industries-remembrance::on_configuration_changed
New name is invalid.
stack traceback:
[C]: in function 'newindex'
__exotic-space-industries-remembrance/control.lua:324: in function 'reforge_gaia_surface'
exotic-space-industries-remembrance/control.lua:437: in function <exotic-space-industries-remembrance/control.lua:418>"
17.459 Info ServerMultiplayerManager.cpp:808: updateTick(18446744073709551615) changing state from(CreatingGame) to(InitializationFailed)
17.459 Info CommandLineMultiplayer.cpp:211: Exit point.
17.465 Info ServerMultiplayerManager.cpp:146: Quitting multiplayer connection.
17.465 Info ServerMultiplayerManager.cpp:808: updateTick(18446744073709551615) changing state from(InitializationFailed) to(Closed)
17.465 Info ServerMultiplayerManager.cpp:166: Deleting active scenario (global = true).
17.639 Info UDPSocket.cpp:237: Closing socket
17.639 Goodbye

Server then force shutsdown.

Strange—old save?
Post the file.

It was a recent save, It's strange. I deleted the file and uploaded a fresh copy and it seemed to work. So I'm gonna say old save/corrupt file. It's working now.