p5 js - caot make it work

Hello everyone,
How are you?
I understand that this forum is all about Javascript and not custom libraries but I assume it's a general question.

I guess it's really simple to do, but I just caot make the p5.js library work. I downloaded it, and am trying to implement it using the example directory. In the index.html there a few setup lines such as:

<script src="../p5.min.js"></script>

This just refers to a sub folder in which this file does exist. Now when I'm previewing the web page the console says:

GET http://127.0.0.1:50082/p5.min.js net::ERR_ABORTED

And of course I caot use the functions of the library.
What am I doing wrong? And what this error line generally means? I'm using Brackets if it matters

Thanks a lot in advance