Thank you for reaching out.
I checked your account and it seems that the A record that you recently added for www hasn’t propagated yet. This is similar to the other subdomain that you have added for your other Static app. See screenshots below:
DNS propagation usually takes 24-48 hours to complete. Let’s give this more time.
If it is okay, can you please send me DM with the screenshots of the subdomain’s A records so that I can double check and confirm?
Thank you for sending the screenshot of your DNS records.
It seems that you have added the DNS records incorrectly.
Can you please edit the following records and make sure you only put the following under hosts?
www parkinglotlinepaintingblog
What happened is that the root domain was also added in Namecheap thus showing this for example.