Not able to install BOTanicals App. Received Method does not exist or incorrect signature error.

Hi all, I need help for this challenge, I can't seem to install the package as directed by the Trailhead Project below:

https://trailhead.salesforce.com/content/learn/projects/use-apex-to-automate-business-processes/set-up-the-botanicals-app?trail_id=build-apex-coding-skills