Partial NL to UK translation with Falang

I am using the Falang translation plug-in under Elementor and with MEC. On the page below, if I switch to UK, in the gb_wolle guestbook the “standard” string like Name, City are translated, but not the strings like “Velden gemarkeerd met * zijn verplicht.”, etc.
I am suprised that gb_wolle is aware that a translation plug-in is used.
a) How does gb_wolle know that we switch from NL to UK, there are no instruction for Falang ?
b) What can I do to get the other “koptekst” and “Tekst van de melding” strings also translated ?.
Falang supports translation integration of many plug-ins on this website. Can he be of help to support gb_wolle too maybe ?

• This topic was modified 1 year, 3 months ago by villa-verde.
• This topic was modified 1 year, 3 months ago by villa-verde.
• This topic was modified 1 year, 3 months ago by villa-verde.

The page I need help with: [log in to see the link]