Email form dont work (i changed email inside mail.php)

Email form Personal - Best Personal Portfolio Website Template - Colorlib dont work.
I changed email adress insite mail.php and when i send from website i have msg that text is sent, but i never getting email?

What is wrong here?

Hi

Please don’t start duplicate tickets: Email form dont work on this theme can you help? https://colorlib.com/wp/template/personal/ - #4 by igor1987x