NPM >= 7.X.X install

[abju]

With NPM 7 it's impossible install this package. With NPM 6 work correctly.

npm ERR! Cannot convert undefined or null to object

npm ERR! A complete log of this run can be found in:
npm ERR!     /home/XXXXX/.npm/_logs/2021-03-26T13_29_30_178Z-debug.log

File log

332 verbose stack TypeError: Cannot convert undefined or null to object
332 verbose stack     at Function.keys (<anonymous>)
332 verbose stack     at Advisory.load (/home/XXXXX/.nvm/versions/node/v12.20.2/lib/node_modules/npm/node_modules/@npmcli/metavuln-calculator/lib/advisory.js:102:33)
332 verbose stack     at Calculator.[calculate] (/home/XXXXX/.nvm/versions/node/v12.20.2/lib/node_modules/npm/node_modules/@npmcli/metavuln-calculator/lib/index.js:59:14)
332 verbose stack     at async Promise.all (index 0)
332 verbose stack     at async Map.[init] (/home/XXXXX/.nvm/versions/node/v12.20.2/lib/node_modules/npm/node_modules/@npmcli/arborist/lib/audit-report.js:177:7)
332 verbose stack     at async Map.run (/home/XXXXX/.nvm/versions/node/v12.20.2/lib/node_modules/npm/node_modules/@npmcli/arborist/lib/audit-report.js:105:7)
332 verbose stack     at async Arborist.reify (/home/XXXXX/.nvm/versions/node/v12.20.2/lib/node_modules/npm/node_modules/@npmcli/arborist/lib/arborist/reify.js:131:5)
332 verbose stack     at async Install.install (/home/XXXXX/.nvm/versions/node/v12.20.2/lib/node_modules/npm/lib/install.js:137:5)
333 verbose cwd /home/httpd/offerte.mini
334 verbose Linux 4.15.0-137-generic
335 verbose argv "/home/XXXXX/.nvm/versions/node/v12.20.2/bin/node" "/home/XXXXX/.nvm/versions/node/v12.20.2/bin/npm" "install"
336 verbose node v12.20.2
337 verbose npm  v7.7.5
338 error Cannot convert undefined or null to object
339 verbose exit 1