incorrect malware detection?

[rtpHarry]

Somebody has contacted our client saying that their internet provider has shown a malware:

My internet provider recently blocked https://metalpackager.com/ from access with the following warning.

“This website posed a malware risk. This risk tries to access sensitive info like login or credit card details. We blocked the connection to stop private data from being exposed.”

I don't have any further details, like what software reported this.

I ran it through all the website malware checkers I could find. It passed sucuri, google safe browsing, qualys ssl checks, etc.

But siteguarding.com reported this:

We have the "instant click" option turned on, and im guessing thats what this snippet of code is related to.

Not sure what can be done about this, but I thought I would report it just in case somebody knows a way to mitigate it.