Table index is nil

[happysmash27]

The error:

2019-08-19 13:28:30: ERROR[Main]: ModError: Failed to load and run script from /home/happysmash27/Minetest/minetest/bin/../mods/moreblocks-master/init.lua:
2019-08-19 13:28:30: ERROR[Main]: ...Minetest/minetest/bin/../builtin/common/misc_helpers.lua:562: table index is nil
2019-08-19 13:28:30: ERROR[Main]: stack traceback:
2019-08-19 13:28:30: ERROR[Main]: 	...Minetest/minetest/bin/../builtin/common/misc_helpers.lua:562: in function 'copy'
2019-08-19 13:28:30: ERROR[Main]: 	...n/../mods/moreblocks-master/stairsplus/registrations.lua:57: in main chunk
2019-08-19 13:28:30: ERROR[Main]: 	[C]: in function 'dofile'
2019-08-19 13:28:30: ERROR[Main]: 	...netest/bin/../mods/moreblocks-master/stairsplus/init.lua:85: in main chunk
2019-08-19 13:28:30: ERROR[Main]: 	[C]: in function 'dofile'
2019-08-19 13:28:30: ERROR[Main]: 	...Minetest/minetest/bin/../mods/moreblocks-master/init.lua:21: in main chunk
2019-08-19 13:28:30: ERROR[Main]: Reviziu debug.txt por detaloj.

It appears that debug.txt has the exact same text as in my console.

This is on a freshly-built copy of Minetest 5.0, and happens with both the git and zip version of the mod. Another error occurs on the older version of Minetest.

[johann-lau]

I am having the same problem.

[Calinou]

I am having the same problem.

Which Minetest version are you using? Is this in singleplayer or on a server you're hosting? Are you doing anything specific to trigger the crash?