TypeError: undefined is not an object (evaluating 'obj.config.max')

[yuniq-neko]

When attempting to update value of JustGage, Safari on macOS Sierra spews out the following error into its console:

[Error] TypeError: undefined is not an object (evaluating 'obj.config.max')
	refresh (justgage.js:875)
	(anonymous function) (Embedded:23)
	i (jquery-3.2.1.min.js:2:28023)
	fireWith (jquery-3.2.1.min.js:2:28785)
	A (jquery-3.2.1.min.js:4:14047)
	(anonymous function) (jquery-3.2.1.min.js:4:16325)

HTML Page causing the issue has been uploaded to gist.github.com
The index.json just contains:

{"temperature":14.00, "humidity":41.00}

[Nathan77gr]

Hello,

I have the same problem. "TypeError: obj.config is undefined" in the console.
line 875 justgage.js => " if ((val * 1) > (obj.config.max * 1)) { "

Thanks in advance.