Not receiving emails.

I am using version 4.4.4 actually.
I am not receiving any emails, and they are not going to be email spam folder either. They go nowhere. Contacted host provider and they said it’s not on their end. I prefer the aethetics and ease of functionality to this plugin over the ubiquitous Contact Form 7. Oh, by the way, I had the same problem with Contact Form 7. So what could it be?
Is it a Theme problem? I am using the latest version of Comic Press. I hope I can resolve it here and not have to go talk to somebody else?
p.s.
I even tried this fix/patch that a previous commenter offered, but it made no difference:
“On the settings screen of the contact form tick ‘Override ‘From’ Address :‘ and then enter an email address that you own in the ‘‘From’ Email Address :‘ box underneath. This will make all emails appear to come from you instead. You won’t be able to click the ‘reply’ button to quickly reply, but don’t worry, your form-filler’s email address will be in the message so you will know who to reply to.”

https://www.ads-software.com/plugins/clean-and-simple-contact-form-by-meg-nicholas/