Automatically incrementing participant number?

Hi !
@wakecarter I tried to use your app on one of my experiments. But participant number started at 2 instead of 1 and when I click again on the URL i have got a ‘403 forbidden’ error message. Plus participant number seems to be incremented 2 by 2. Right now I am still testing so is it possible to reset participant numbers to restart at 1 ?

Thank you!