@fmota Thank you for your reply.
I think in my original post it was not clear that I already have a website: turismoracing.com.
So, for context, and for anyone else that reads my post, I own an E-commerce. I sell things there at turismoracing.com.
I don’t like how it looks, so I created a new website on Plasmic: turismo-racing.plasmic.run.
Now, I want the new website, turismo-racing.plasmic.run to have the URL that my E-commerce has: turismoracing.com.
Naturally, if you go to www.turismoracing.com and to turismoracing.com you will see a website, but not the website I want. And I cannot afford to take down my old website while I migrate to the new website because I will lose sales.
So, as I stated in my OP, I put on Plasmic the custom domain, it gave me the “Invalid configuration” error and suggested me to put some information on my DNS provider. Which worked only for www.turismoracing.com but not for turismoracing.com.
As I just stated, you can go to turismoracing.com because my E-commerce is currently live on there, but not the site I want, turismo-racing.plasmic.run.
So, basically, I want turismo-racing.plasmic.run to have the URL turismoracing.com but it only works for the www version.
I suspect there is a DNS field that Plasmic is not providing me.
Can you help after this clarification?
I don’t even know what further information I can provide to you apart from the ones on my OP.