Error when same user fills up the same form

i want to test it.
Can you please send me URL of your form ?

Thanks

Sure,

Here it is: https://tipsdesucesso.com/contactos/

i submitted it 2 times with “[email protected]”
can you please send me log details of second entry ?

Here it is:

https://www.dropbox.com/s/1nev4xpl2b6fo56/Screenshot%202018-10-09%2021.06.32.png?dl=0

i submitted first ticket
plugin added it to freshdesk
then i submitted 2nd
plugin updated first ticket

where is the issue ?