My application has problems with DNS and CNAME OVH

Hello, I am having problems with my appweb and it throws the following alert "There is a problem with your domain name configuration. Take a look at the DNS setup section below for details. Be aware that DNS changes can take some time to propagate across the internet. The exact time they take will depend on your domain configuration, but it could be as long as a day. " also in my CNAME the following alert appears "Your domain's current CNAME is Check this help page for more information about how to set it up correctly."

The problem is that I followed all the instructions on the help page to configure the CNAME in my domain, which is provided by the OVH company, and I still cannot view my web app, which already has more than 24 hours of having programmed the DNS, I wish someone could help me with this problem

Could you email us a screenshot of the DNS setup that you've done on OVH to