I issued a LetsEncrypt cert for the domain webwellprofits.com on IIS. Later on, I needed a wildcard cert and LetsEncrypt didn’t support them yet, so I had to purchase one.
Now I can’t get LetsEncrypt to quit trying to renew the old cert. I can’t find where to remove it from the scheduled task that kicks off to renew.
When it attempts to renew and fails, it removes my wildcard cert from the site. Then I have to manually go in and specify the wildcard cert again.
What program is it starting? Ultimately, you're going to need to check the documentation for the client you're using about how to remove a certificate from its list to renew. But folks can't help point you to that documentation until we can figure out what client you're actually using.
@JuergenAuer is also correct that you can now get wildcard certs from Let's Encrypt. However, it requires using DNS validation which you may or may not be ready to use depending on the client you pick, your DNS provider, and the client's available plugins.