Please make sure you are not using any mods:
2020-05-31T02:44:06 43.342 INF [MODS] Start loading
2020-05-31T02:44:06 43.349 INF [MODS] Initializing mod code
2020-05-31T02:44:06 43.349 INF [MODS] Loading done
I could not repro this issue. Seed generated without error.