Node.js on Plesk

How to solve the problem with NPM Install?
Node.js Version 12.4.0
This is a tutorial for it:

Everything works except installing NPM.
Problem with the unsupported format:
/app/package.json: Unsupported file format

npm WARN read-shrinkwrap This version of npm is compatible with lockfileVersion@1, but package-lock.json was generated for lockfileVersion@2

Btw. Can`t use Docker desktop because of hardware limitation.

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