When running "install npm", the build encounters the following error:

10:34:58 [ERROR] Failed to execute goal com.github.eirslett:frontend-maven-plugin:1.9.1:install-node-and-npm (install node) on project gui-pdp-monitoring: Could not download npm: Could not download

https://registry.npmjs.org/npm/-/npm-6.14.4.tgz

: Network is unreachable (connect failed) -> [Help 1] 10:34:58 org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal com.github.eirslett:frontend-maven-plugin:1.9.1:install-node-and-npm (install node) on project gui-pdp-monitoring: Could not download npm: Could not download

https://registry.npmjs.org/npm/-/npm-6.14.4.tgz