Whenever a server is started up with Nature's Aura V28.0 it crashes, from what Rabit on discod could figure out it is caused by This commit: b4990a6
introduced a new entity renderer for the StructureFinder, which is probably where the issue originates.
i will be attaching my server crash log, for more detials.
crash-2020-05-22_10.39.22-server.txt