Can't install markdown-to-sanity in node 11 & 12

[pierrenel]

╰─λ node --version                                                                                                                     0 < 15:28:26
v12.16.1
╭─pierre at iMac in /Users/pierre
╰─λ npm i -g markdown-to-sanity                                                                                                        0 < 15:28:36
npm WARN deprecated request@2.88.2: request has been deprecated, see https://github.com/request/request/issues/3142
npm WARN deprecated highlightjs@9.16.2: Use the 'highlight.js' package instead https://npm.im/highlight.js
npm WARN jsdom@15.2.1 requires a peer of canvas@^2.5.0 but none is installed. You must install peer dependencies yourself.
npm WARN ws@7.2.3 requires a peer of bufferutil@^4.0.1 but none is installed. You must install peer dependencies yourself.
npm WARN ws@7.2.3 requires a peer of utf-8-validate@^5.0.2 but none is installed. You must install peer dependencies yourself.

npm ERR! code ENOENT
npm ERR! syscall chmod
npm ERR! path /Users/pierre/.nvm/versions/node/v12.16.1/lib/node_modules/markdown-to-sanity/bin/markdown-to-markdown.js
npm ERR! errno -2
npm ERR! enoent ENOENT: no such file or directory, chmod '/Users/pierre/.nvm/versions/node/v12.16.1/lib/node_modules/markdown-to-sanity/bin/markdown-to-markdown.js'
npm ERR! enoent This is related to npm not being able to find a file.
npm ERR! enoent 

npm ERR! A complete log of this run can be found in:
npm ERR!     /Users/pierre/.npm/_logs/2020-03-27T13_28_47_603Z-debug.log
╭─pierre at iMac in /Users/pierre