Thank you very much for your help, I've changed the dns, but it didn't work. In fact, the problem is exactly as I said, deleted files.
I think I'il rebuild the server.
Hi,
The Web server configuration had given the following error. I erased the points that gave me the error. Now plesk works but the sites don't open.
ERR_QUIC_PROTOCOL_ERROR
The site looks like this:
How can we obtain this configuration file?
Thanks