Cannot read property 'replace' of undefined

[Dada2201]

Hey,

got this while running the cli.js

  return parseInt(classes[0].replace('r-card', ''));
                             ^

TypeError: Cannot read property 'replace' of undefined
    at ConsumableElement.getConsumableID (/Users/dleneveu/dev/isaac/platgod-scraper/scraper/ConsumableElement.js:16:30)
    at ConsumableElement.toJSON (/Users/dleneveu/dev/isaac/platgod-scraper/scraper/ConsumableElement.js:39:24)
    at /Users/dleneveu/dev/isaac/platgod-scraper/scraper/platinum_god.js:78:35
    at next (/Users/dleneveu/dev/isaac/platgod-scraper/node_modules/x-ray/index.js:146:11)
    at /Users/dleneveu/dev/isaac/platgod-scraper/node_modules/x-ray/index.js:259:7
    at /Users/dleneveu/dev/isaac/platgod-scraper/node_modules/x-ray/lib/walk.js:56:12
    at /Users/dleneveu/dev/isaac/platgod-scraper/node_modules/batch/index.js:161:14
    at processTicksAndRejections (internal/process/task_queues.js:79:11)