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Cannot read property 'backgroundColor' of undefined

See original GitHub issue

Cloning this repository, and running install, build and start command, I get the following error as soon as I visit the dashboard with my browser.

(pi@HulenPi:~/dashboard/pages $ npm start

> dashboard@1.0.0 start /home/pi/dashboard
> next start

> Ready on http://localhost:3000
TypeError: Cannot read property 'backgroundColor' of undefined
    at /home/pi/dashboard/.next/server/static/mX9Kv1iErUfmWQOdMcvjO/pages/index.js:363:30
    at flatten (/home/pi/dashboard/node_modules/styled-components/dist/styled-components.cjs.js:1292:21)
    at flatten (/home/pi/dashboard/node_modules/styled-components/dist/styled-components.cjs.js:1272:16)
    at ComponentStyle.generateAndInjectStyles (/home/pi/dashboard/node_modules/styled-components/dist/styled-components.cjs.js:1481:19)
    at StyledComponent.generateAndInjectStyles (/home/pi/dashboard/node_modules/styled-components/dist/styled-components.cjs.js:2160:36)
    at StyledComponent.renderInner (/home/pi/dashboard/node_modules/styled-components/dist/styled-components.cjs.js:2065:33)
    at a.render (/home/pi/dashboard/node_modules/react-dom/cjs/react-dom-server.node.production.min.js:44:64)
    at a.read (/home/pi/dashboard/node_modules/react-dom/cjs/react-dom-server.node.production.min.js:41:58)
    at renderToString (/home/pi/dashboard/node_modules/react-dom/cjs/react-dom-server.node.production.min.js:53:83)
    at render (/home/pi/dashboard/node_modules/next-server/dist/server/render.js:86:16))

When running “npm run dev” then everything works fine.