Why does CloudflareError: 1020, Access Denied (Custom Firewall Rules) occur?

Question

JavaScript

The site is protected by cloudflare, it used to be parsed normally through cloudscraper, and today the parser started to give an error

CloudflareError: 1020, Access Denied (Custom Firewall Rules)
at validateResponse (C:\Users\kek\Desktop\esports\node_modules\cloudscraper\index.js:281: 11)
at onCloudflareResponse (C:\Users\kek\Desktop\esports\node_modules\cloudscraper\index.js:222:5)
at onRequestResponse (C:\Users\kek\Desktop\esports\node_modules\cloudscraper\index.js: 205:5)
at Request. (C:\Users\kek\Desktop\esports\node_modules\cloudscraper\index.js:149:7)
at Object.onceWrapper (events.js:300:26)
at Request.emit (events.js:210:5)
at Request. (C:\Users\kek\Desktop\esports\node_modules\request\request.js:1154:10)
at Request.emit(events.js:210:5)
at IncomingMessage. (C:\Users\kek\Desktop\esports\node_modules\request\request.js:1076:12)
at Object.onceWrapper (events.js:299:28)
at IncomingMessage.emit (events.js:215:7)
at endReadableNT (_stream_readable.js:1184:12)
at processTicksAndRejections (internal/process/task_queues.js:80:21) {
name: 'CloudflareError',
message: '1020, Access Denied (Custom Firewall Rules)'
}

Answer 1

Here is a fork with a fix