Dear Yannick,
1. SH404SEF is installed for many years on our website, but recentlye I have changed and renamed many K2 categories.
That is why I deleted or purged the SEF urls to refesh. Before the menu-items worked perfect. The problem is mainly in the menu.
For instance the menu-item "Diensten" is a K2 category menu-item but the url is directed to www.xxxx.nl. How can I change this?
2. The site is active for many years
3. Yes I am using the K2 plugin since 2016
4. Yes, I have reviewed all settings, but there is no possibilty in K2, the K2 plugin of SH404SEF to change the behaviour of the menu-items
which are based upon a K2 Category
Beside the above mentioned configuration I am using the template "shaper_helixultimate - Standaard" from Joomshaper for many years.
I hope you can help to sove the url problems
With friendly regards
Wm Honig