It can be another addon with an embedded older version LAM which causes trouble with this add-on.
Yeah. I don't think that's the problem here, though. Baertram helped with some of the code and it halfway fixed the issue. I think the author needs to make some changes.
¯\_(ツ)_/¯
Right. I only made this forum post to make sure it wasn't something wrong on my end. Now that it has been seemingly confirmed, I'll wait for the author to hopefully fix the bugs.