Hi @elmonty
Sorry to hear you are having this issue.
I was able to replicate the problem around the issue on my lab site but we also tested on other websites and it isn’t happening.
I believe the problem is around the calculation. Could you duplicate the form, remove the paypal field and submit it without the payment field, then go to wp-admin > Forminator > Submissions and locate the submission, check the total value, will it show 103 or 104? ( considering only the donation + super charge 3.5 ).
In short, the “(0+0}+100)*((3.5/100)+1)” is 103.5, using round it the front end seems to be rounding to 103 while backend to 104 therefore invalid payment amount.
I also escalated this to our second line support team, once we hear back from the second line support team we will let you know.
Best Regards
Patrick Freitas
Hi @elmonty
An update here
Could you please let us know if you are using PHP 8.4 or lower versions?
The problem seems because a difference between PHP 8.3 to 8.4 when round happens to down vs up ( https://stackoverflow.com/a/79816702 ), if you are using 8.3 or lower, please try updating to PHP 8.4.
I understand that front end via JavaScript the calculation seems correct and I also reported it to our second level support, but in the meantime the PHP 8.4 solution would fix the issue.
Best Regards
Patrick Freitas
