Just come from space, Using Space Exploration on Multiplayer.
https://prnt.sc/8djFr7hjLL5Q
or
error while running beltlayer ::on_player_main_inventory_changed(ID34)

LuaEntity API call when LuaEntity was invalid.
C : In Function "Index"
__beltlayer/lualib/baseditor.lua:313: In Function "get _valid_item_counts"
beltlayer/lualib/baseditor.lua:323: In Function "sync_Inventories"
beltlayer/lualib/baseditor.lua:350: In Function "sync_player_Inventories"
beltlayer/lualib/baseditor.lua:1091: In Function "On_Player_main_Inventory_changed"
beltlayer/control.lua:29: In Function <beltlayer/control.lua:29>