ProCalendar missing colorpicker

[Boudi]

Hi,

ProCalendar is working ok on 2.10 PHP 7.0.24. Except there's no colorpicker in the Admin where you can give categories the given color.

I DO notice an error in the backend_body.js. I don't know if that's the cause.

ReferenceError: MODULE_URL is not defined

Code: [Select]

$.insert(MODULE_URL + 'js/mColorPicker/javascripts/mColorPicker.js');
How to solve?