Error checking email after updating

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.