Maybe the emails you have received, as well as the new ones, come from the same source?
I bought Yahoo emails that were closed a few days later.
Your POP (Post Office Protocol) and other settings seem correct.
Try using (just as a test) your own private email that is already working.
Also make sure that the PGs are correct. I know, simple stuff, but ..
That way, you can exclude if it's just the emails you bought.