1. Here's the screenshot of the error + console tab.
Clicking on "Uncaught TypeError" brings me to this.
Unsure if you need this, but it can't hurt to show, I guess.
2. I think I am? My MZ version is 1.7.0, EliBook is 5.4.15. Picture Manager is 1.1.1.
3. It does start with EliMZ, yes.
I'm gonna try and replicate the error on a blank project, should you need it on Discord.