I fixes it. I installed a backup and did the update once again, this time without an error. Thanks.
Some additional information asked at the basic instruction:
– There is no fatal error in the error log
– The name of the site is traex.de
Ah, ok, thank you, I followed your link now.
But anyway, if someone has another answer, you are welcome.
It is a Google message and they mention it, but adding usually not. At all it is still an error and an inconvenient one and of course it bothers me to have an error on my blogs and sites maybe becoming worse.
I missed one detail, it is a 404 error, if not recognized.
