Hello Robin,
that helped!
Thank you very much!
Regards,
Alex
I think I have found out the issue.
A third party plugin caused the issue.
I had a plugin activated for custom 404 pages.
I have deactivated it now. Seems to work fine now.
Thanks for your help & and I´m sorry for the circumstances.
Regards,
Alex
Hello Robin,
thanks for your reply!
I have done following:
dashboard > settings > permalinks > just hit save (without selecting anything new)
I have /postnames selected.
Regards,
Alex
