ContactUsFrm on V1.3.4

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Hello,

I'm anew client on AbanteCart and i would like 1st to thank you for the great job you've done over years. I installed fresh version of V1.3.4 with php 8.1. I did customized the ready default ContactUsFrm and added some fields but when testing the form on website it is not sending the form and not showing any errors or notifications on contact us form web page or on admin dashboard as also there isn't any emails too. What is missing in my case please?

Thank you...
G.O.   

[Basara]

Hello.
You change the default settings and that's why it does not work as configured by default
Processing Controller: Contact us page
Success page: content/contact/success

[globaloverline]

Hello.
You change the default settings and that's why it does not work as configured by default
Processing Controller: Contact us page
Success page: content/contact/success

Hello,
Thank you for taking time to support me.
I tried these options but doesn't worked too.
any more ideas please?

Thank you...
G.O.