Error in installing

Why am i getting this error? How to solve it?
Annotation 2019-12-28 001940

Hello and welcome to the community.

Please post more info, ie system info, version of processing. The less info we have the less we can help.

I was trying to contribute to : p5.js-web-editor

Sys : Acer Nitro 5 Ryzen [ 8Gb Ram, Graphic: AMD RX560X 4GB ]
   Google Chrome [ Version 79.0.3945.88 (Official Build) (64-bit) ]

I have gone through installation guide, and did the same. I also made sure mongoDB is running.

I used redux dev tool and found that data “Sketches” is empty which i think is causing error.

What is it you are trying to do exactly, I’m unfamiliar with how to contribute to p5.js-web-editor, so have no idea what the requirements are.

Sir, I am GSoC 2020 aspirant. So I was trying to contribute to GSoC’19 project, i.e. p5.js-web-editor.
Can you please guide me how do i start contributing!

You can start with the developer docs especially if you have issue with building the project.