Resolved Problem regarding a domain

[DieterWerner]

I feel ashamed but I need help again.

One of my domains seems to be corrupted since a few days.
https://MyDomain shows the default page of plesk and not the index.html of the domain.
https://MyDomain/index.html works fine (as well as the other html pages and script URLs).

I did all kinds of plesk repair - but nothing eliminates the error.

What can I do?

 

[IgorG]

Please check that you have no any custom settings here:

 

[DieterWerner]

I checked it and there wasn't any custom setting.
So I cklicked the custom valua button, restarted Apache and the index.html has been displayed.
After that I chlicked the Default button, restarted Apache and the index.html has been displayed too.
That's odd...

But your hint was the key to solve my problem.
Many Thnks!