Can't Open Server Anymore

[totestoto]

No server or client mods. (I played with a few client mods but those are turned off and the server still will not start). 1000 day world refuses to restart after a rollback in the fumarole biome right after a ripple kill. Any suggestions would be appreciated. Each attempt to restart the server makes a new rollback entry so I can no longer "get out" of the fumarole biome. I'm not sure if that's the issue. 

client_log.txt master_server_log.txt

[totestoto]

It's actually a cave log issue:
[00:00:22]: [string "scripts/components/centipedebody.lua"]:330: attempt to index field '?' (a nil value)
LUA ERROR stack traceback:
    scripts/components/centipedebody.lua:330 in (method) LoadPostPass (Lua) <327-338>
    scripts/entityscript.lua:1944 in (method) LoadPostPass (Lua) <1939-1952>
    scripts/gamelogic.lua:636 in (upvalue) PopulateWorld (Lua) <368-664>
    scripts/gamelogic.lua:942 in (upvalue) DoInitGame (Lua) <821-1029>
    scripts/gamelogic.lua:1063 in (local) cb (Lua) <1057-1064>
    scripts/shardindex.lua:214 in (upvalue) OnLoadSaveDataFile (Lua) <196-215>
    scripts/shardindex.lua:219 in () ? (Lua) <218-220>
    =[C]:-1 in (method) GetPersistentString (C) <-1--1>
    scripts/shardindex.lua:218 in (method) GetSaveDataFile (Lua) <217-221>
    scripts/shardindex.lua:239 in (method) GetSaveData (Lua) <223-244>
    scripts/gamelogic.lua:1065 in (upvalue) DoLoadWorld (Lua) <1056-1066>
    scripts/gamelogic.lua:1118 in (upvalue) LoadSlot (Lua) <1112-1124>

 

 

Any ideas for how to fix it?