I think I am getting the same error as this post, but unlike the OP’s case the issue is not yet resolved with re-installing the LongVinter server files for me.
~/longvinter-linux-server (main) $ sh LongvinterServer.sh
4.26.0-0+++UE4+Release-4.26 522 0
Disabling core dumps.
Preparing to exit.Shutting down and abandoning module SandboxFile (6)Shutting down and abandoning module PakFile (4)Shutting down and abandoning module RSA (3)Exiting.Exiting abnormally (error code: 1)
Any helps, please?