Error occurs in plug-in execution where everything is the same and only the ID is different

tested repo : https://github.com/aashreys/button

A successful value is a random value, such as the ID of an existing project or 123123 

The value that fails is
It's 1461979095811953262, which was newly issued through the creation of the plug-in

The error message that occurs is
2615-64e67bee38a9b943.min.js.br:127 Uncaught (in promise) oR: Could not find widget code to run


 

Everything is the same, and it happens when I change my ID

It is reflected when the code is changed from a working ID
If there is a development method that I don't know, please let me know