Template render error: (unknown path)
  TypeError: Cannot read properties of undefined (reading 'startsWith')
    at Object._prettifyError (/Users/apart/Documents/projects/spuerkeess-design-system/node_modules/nunjucks/src/lib.js:32:11)
    at /Users/apart/Documents/projects/spuerkeess-design-system/node_modules/nunjucks/src/environment.js:464:19
    at Template.root [as rootRenderFunc] (eval at _compile (/Users/apart/Documents/projects/spuerkeess-design-system/node_modules/nunjucks/src/environment.js:527:18), :66:3)
    at Template.render (/Users/apart/Documents/projects/spuerkeess-design-system/node_modules/nunjucks/src/environment.js:454:10)
    at Environment.renderString (/Users/apart/Documents/projects/spuerkeess-design-system/node_modules/nunjucks/src/environment.js:313:17)
    at Environment.promisified [as renderStringAsync] (/Users/apart/Documents/projects/spuerkeess-design-system/node_modules/bluebird/js/release/promisify.js:223:16)
    at NunjucksAdapter.render (/Users/apart/Documents/projects/spuerkeess-design-system/node_modules/@frctl/nunjucks/src/adapter.js:96:28)
    at ComponentSource._renderVariant (/Users/apart/Documents/projects/spuerkeess-design-system/node_modules/@frctl/fractal/src/api/components/source.js:212:30)
    at _renderVariant.next ()
    at onFulfilled (/Users/apart/Documents/projects/spuerkeess-design-system/node_modules/co/index.js:65:19)