06:51:40: ERROR[main]: ServerError: ...ambuilder_game/mods/homedecor_modpack/signs_lib/init.lua:734: attempt to index local 'def_under' (a nil value)
06:51:40: ERROR[main]: stack traceback:
06:51:40: ERROR[main]: 	...ambuilder_game/mods/homedecor_modpack/signs_lib/init.lua:734: in function <...ambuilder_game/mods/homedecor_modpack/signs_lib/init.lua:714>