The online tool is no more available and you get the error message:

This is because a computer has provided the same ATR (the default one) over and over again until my quota was exceeded.

I know the IP address of the offending computer: 167.114.13.x. It is a computer in an OVH data center in Beauharnois (BHS) Canada.
The quota should be restored every 24 hours so the web application may be available again when you read this.
If you are the owner of the offending computer please stop. It is a denial of service. It is not funny.
For the others, sorry for the inconvenience.