Mautic5.1.0

Your software Mautic 5.1.0
My PHP version is : 8.2.14
My MySQL/MariaDB version is 10.11.8-MariaDB-cll-lve

My problem are :
1 configuration page does not open
2email not send

Steps I have tried to fix the problem : contact my hosting provider they said not they issue all setup very well on their end

this issue appear when i start config email part specialy default mailbox

What SMTP are you using?

i work with hostinger as provider