Google Read Aloud Fails to read pages that contain an easepick calander.

[anthony0030]

Describe the bug
Google Read Aloud Fails to read pages that contain an easepick calendar.

To Reproduce
Steps to reproduce the behavior:

1. Go to easepick.com Using an Android phone
2. Activate Google Assistant
3. Ask Google assistant to read the page
4. See error

Expected behavior
The page gets read.

Additional context
I have a program that logs errors. I keep getting the error
(e || this.calendars[0]).clone is not a function

and the user agent is always:
Mozilla/5.0 (Linux; Android 7.0; SM-G930V Build/NRD90M) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.125 Mobile Safari/537.36 (compatible; Google-Read-Aloud; +https://support.google.com/webmasters/answer/1061943)

This is the user agent for a google crawler please see https://developers.google.com/search/docs/crawling-indexing/overview-google-crawlers