vvr113 on "[Plugin: Pirate Forms - Contact Form and SMTP Plugin] No email received"

Hey! I recently made a website: Zelolit.tk hosted on 000webhost.com.
I'm using a theme called Zerif Lite, and it came along with a "Contact Us" form which I have used on the website.
When I fill it out and click send, it shows me an 'E-mail sent successfully' message, but I don't receive any E-mail in my inbox.
I read some of the posts here, and I tried setting up SMTP - again without any success.
Subsequently, I installed 'Postman SMTP' and ran the wizard.
It shows me an error message on the connectivity step:
"Unexpected PHP error corrupted the Ajax Response".
What should I do now?
Please help

https://wordpress.org/plugins/pirate-forms/