[Closed] Translating the filters and loop grid and getting the correct content within that grid on the englis...

Background of the issue:
I am trying to translate the filters and loop grid to display the correct content in both English and Dutch on my site hidden link. On the Dutch site (hidden link), I want everything in Dutch, including the 'Bijzonderheden' filter and the loop grid. On the English site (hidden link), I want everything in English, including the 'details' filter and the loop grid. The filter is placed with a widget 'Search & filter form' and the form chosen is Dutch. The loop grid uses the 'objectenkaart' template in Dutch and 'Object map' template in English.

Symptoms:
On the Dutch site, the loop grid is mostly in Dutch except for 'Hembrugstraat 27 3' which has 'Available' in the left corner. The 'Bijzonderheden' filter contains both Dutch and English options. On the English site, the 'Details' filter contains Dutch options and the loop grid is in Dutch despite using the English template and query.

Questions:
How can I ensure that the 'Bijzonderheden' filter on the Dutch site only shows Dutch options?
How can I make sure the 'Details' filter on the English site only shows English options?
Why is the loop grid on the English site displaying Dutch content despite using the English template and query?
How can I fix the issue where 'Hembrugstraat 27 3' shows 'Available' in the Dutch loop grid?