ubunut 18.04 npm install -g ravencore-node fails

[andreireiand]

Log:
@ubuntu:~$ npm install -g ravencore-node
npm WARN deprecated mkdirp@0.5.1: 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.)
npm WARN deprecated urix@0.1.0: Please see https://github.com/lydell/urix#deprecated
npm WARN deprecated resolve-url@0.2.1: https://github.com/lydell/resolve-url#deprecated

ravencore-node@1.0.3 preinstall /usr/local/lib/node_modules/ravencore-node
./scripts/download

sh: 1: ./scripts/download: Permission denied
npm ERR! code ELIFECYCLE
npm ERR! errno 126
npm ERR! ravencore-node@1.0.3 preinstall: ./scripts/download
npm ERR! Exit status 126
npm ERR!
npm ERR! Failed at the ravencore-node@1.0.3 preinstall script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR! /home/master/.npm/_logs/2020-09-19T22_01_34_534Z-debug.log
master@ubuntu:~$