Cannot read property 'expParams' of undefined

I have many, many plugins enabled, and I'm legitimately worried that a recent update of MV might have caused some severe compatibility issues. Here is the screenshot of the console but I can't figure out what is wrong.

 

I've moved this thread to Javascript/Plugin Support. Please be sure to post your threads in the correct forum next time. Thank you.

A screenshot of your plugin manager would probably be useful.

 

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Sorry, I thought I did post it there, I must've posted it in the wrong one by accident.

 

Your yanfly plugin order is probably wrong. Take a look at her website for correct plugin order.

 

You also have ItemCore twice in your plugin manager.

 

Huh. So I do.

I’ll check, but it hasn’t given me any problems before today. I’m away from my computer right now though, I’ll reply back after I’ve got the chance to fix it.

 

No, it's not twice there. It's once, just in two different images, because there aren't enough plugins to cover entire two pages.

Edit: Nevermind, I'm blind. It is

 

The problem with the wrong order is that this will cause almost untraceable errors that will not happen at any time but only after the data they need get mixed up in the wrong way - which may or may not be at game start or near game end.

and keep in mind that you need to delete your savefiles and start new games on playtest title because some of the data from plugins is stored in the savefiles and would create more errors if used with a different set of plugins or plugins in a different order.

 

3x item core, 2x element core and totally out of order place, you should really write down what you have and order them better
with a separator plugin (which is OFF) ------------.js and separate, battle, material, etc so you have a nice oversight what
you exacly have to avoid double plugins in your list.

 

As said above, plugin order is important, particularly with so many plugins!

Given the error message, you may want to double-check all your actors have classes assigned in the database.

I think only the first plugin of its name in the Plugin Manager will actually be loaded, but removing duplicates is still a good idea, to reduce mistakes.

 

There were two characters who didn't have classes, as I cut them as playable characters but didn't actually delete the characters themselves. It's working now, though I did get rid of all the redundant plugins and fixed the order.