This video is quite different from what I usually record, in that it isn't really a modding tutorial, but rather a tutorial on how to properly report bugs that you find. There is nothing worse than finding a bug in a mod and reporting it, and having it never fixed, but there are things you can do to help eliminate that chance of it not being corrected.
Post the bug on the mods forum thread or git repository.
Include any error codes you saw when the mod crashed the game.
Include your Minetest version, and version of the mod.