Netlify wont build the website anymore

[myles]

Netlify failed build log 🔒:

7:16:57 PM: Build ready to start
7:16:59 PM: build-image version: 42bca793ccd33055023c56c4ca8510463a56d317
7:16:59 PM: buildbot version: 15854c92f1b74f9c77ad951b5536193c76eff25e
7:16:59 PM: Fetching cached dependencies
7:16:59 PM: Failed to fetch cache, continuing with build
7:16:59 PM: Starting to prepare the repo for build
7:16:59 PM: Git LFS enabled
7:16:59 PM: No cached dependencies found. Cloning fresh repo
7:16:59 PM: git lfs clone git@github.com:myles/braithwaite.io-app
7:17:01 PM: Preparing Git Reference refs/heads/master
7:17:03 PM: Found netlify.toml. Overriding site configuration
7:17:03 PM: Different build command detected, going to use the one specified in the toml file: 'gulp set-env cloneNotebooks build flaskFreezeNetlify' versus '' in the site
7:17:03 PM: Starting build script
7:17:03 PM: Installing dependencies
7:17:03 PM: Python version set to 3.6
7:17:04 PM: Downloading and installing node v8.12.0...
7:17:04 PM: Downloading https://nodejs.org/dist/v8.12.0/node-v8.12.0-linux-x64.tar.xz...
7:17:04 PM:   0
7:17:04 PM: .0%
7:17:04 PM: #####
7:17:04 PM:                                                                  8.3%
7:17:04 PM: 
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7:17:04 PM: ###############################                        69.8%
7:17:04 PM: 
####################################
7:17:05 PM: #################################### 100.0%
7:17:05 PM: Computing checksum with sha256sum
7:17:05 PM: Checksums matched!
7:17:07 PM: Now using node v8.12.0 (npm v6.4.1)
7:17:07 PM: Attempting ruby version 2.3.6, read from environment
7:17:08 PM: Using ruby version 2.3.6
7:17:08 PM: Using PHP version 5.6
7:17:08 PM: Installing dependencies from Pipfile
7:17:09 PM: Installing dependencies from Pipfile.lock (1a5695)...
7:17:32 PM: Pipenv dependencies installed
7:17:32 PM: Courtesy Notice: Pipenv found itself running within a virtual environment, so it will automatically use that environment, instead of creating its own for any project. You can set PIPENV_IGNORE_VIRTUALENVS=1 to force pipenv to ignore that environment and create its own instead.
7:17:32 PM: Python version set to Python 3.6.6
7:17:32 PM: Started restoring cached node modules
7:17:32 PM: Finished restoring cached node modules
7:17:32 PM: /usr/local/bin/run-build-functions.sh: line 139: npm: command not found
7:17:32 PM: Installing NPM modules using NPM version
7:17:32 PM: /usr/local/bin/run-build-functions.sh: line 117: npm: command not found
7:17:32 PM: /usr/local/bin/run-build-functions.sh: line 141: npm: command not found
7:17:32 PM: Error during NPM install
7:17:32 PM: Error running command: Build script returned non-zero exit code: 1
7:17:32 PM: Failing build: Failed to build site
7:17:32 PM: failed during stage 'building site': Build script returned non-zero exit code: 1
7:17:32 PM: Finished processing build request in 33.859062395s