Error when minifying code

[2dengine]

Hello and thank you for sharing your library. The minification feature is very useful, but it fails when trying to process the following file:

https://github.com/Egor-Skriptunoff/pure_lua_SHA/blob/master/sha2.lua

Error: utils/maker/minify.lua:4509: Bad argument #1 to 'traverseTree'. (Expected table, got nil)