problem with installing the workshop

[awsi]

Hallo,
I tried to install this workshop but get this error message, any advice?

Microsoft Windows [Version 10.0.19041.746]
(c) 2020 Microsoft Corporation. All rights reserved.

C:\Users\Ahmed>npm install -g functional-javascript-workshop@latest
npm WARN deprecated [email protected]: The sprintf package is deprecated in favor of sprintf-js.
npm WARN deprecated [email protected]: no longer maintained
npm WARN deprecated [email protected]: Legacy versions of mkdirp are no longer supported. Please update to mkdirp 1.x. (Note that the API surface has changed to use Promises in 1.x.)

changed 68 packages, and audited 69 packages in 23s

8 vulnerabilities (2 low, 1 moderate, 5 high)

To address issues that do not require attention, run:
  npm audit fix

To address all issues (including breaking changes), run:
  npm audit fix --force

Run `npm audit` for details.

C:\Users\Ahmed>npm audit fix
npm ERR! code ENOLOCK
npm ERR! audit This command requires an existing lockfile.
npm ERR! audit Try creating one first with: npm i --package-lock-only
npm ERR! audit Original error: loadVirtual requires existing shrinkwrap file

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\Ahmed\AppData\Local\npm-cache\_logs\2021-01-30T14_00_06_460Z-debug.log