I have created a completely fresh RPG Maker MZ project, and I'm getting this error in the game while trying to use this plugin:

"TypeError
Cannot read property 'removeSpaces' of undefined"

And this from the log:

Uncaught TypeError: Cannot read property 'removeSpaces' of undefined

    at Parameters.parseClassCurves (EliMZ_ClassCurves.js:506)

    at new Parameters (EliMZ_ClassCurves.js:467)

    at Object.initParameters (EliMZ_ClassCurves.js:562)

    at Object.initialize (EliMZ_ClassCurves.js:558)

    at EliMZ_ClassCurves.js:729

DevTools failed to load SourceMap: Could not load content for chrome-extension://njgcanhfjdabfmnlmpmdedalocpafnhl/js/libs/pixi.js.map: System error: net::ERR_FILE_NOT_FOUND

Hi there!

First make sure you are using the core plugin, EliMZ_Book.js somewhere above the Class Curve Plugin.

If the error still happens, I believe the problem is on the plugin parameter configuration. There is something that is not properly filled or something that must be filled, but it is empty. You can try show me screenshots of your Class Curve plugin parameter or upload that project replicating the error and send to me so I can take a look.

Oops, that was definitely the issue. Thanks/sorry!