Hello László,
I am sorry about the inconvenience.
What happens when you try to open the website afterwards? I checked the URL and was able to reach this page:

Yes, this page should open, but do the subpages of the menu also open? My browser gives me this error message.

Hello,
thank you for clarifying, I get the 406 error when checking some of the pages, such as
https://zsuzsimasszazsujpest.hu/metamorf-masszazs.html
https://zsuzsimasszazsujpest.hu/hangtalterapia.html
Could you please provide me with a copy of the project to check whether this is caused by something in the project or if it is a matter of your server's configuration?
You can export it in Step 5 - Export, choosing the “Export the project” option to generate an IWZIP file.
You can then upload the file with https://www.swisstransfer.com/ or similar services, and provide a download link at support @ incomedia.eu (without the spaces).
Thank you.

Hello Eric!

I sent you the download link...

Hi Erik!
I don't know if you did anything, but now all pages are showing up.

Hello László,
I only tested the situation on my hosting space, on which I did not encounter any error.
Perhaps there was a temporary issue on your web space, which has now been fixed by your provider.
Let me know if you notice other stranger behaviors with the website.
I remain available.