polylang shortcode on cookie bar buttons

Hi, I am trying to use the polylang shortcode** in the cookie bar buttons and tooltips, but that doesn’t work.
(**as suggestied by @guenni007 in this ticket https://kriesi.at/support/topic/polylang-in-socket/)

see staging2.brainsprint.nl

accept button text: [polylang lang=”en”]Accept[/polylang][polylang lang=”nl”]Accepteren[/polylang]
accept button tooltip: [polylang lang=”en”]Allow to use cookies[/polylang][polylang lang=”nl”]Cookies accepteren[/polylang]
decline button text: [polylang lang=”en”]Decline[/polylang][polylang lang=”nl”]Afwijzen[/polylang]
decline button tooltip: [polylang lang=”en”]Do not allow to use cookies – some functionality on our site might not work as expected.[/polylang][polylang lang=”nl”]Cookies niet accepteren – sommige functies van de website werken dan mogelijk niet zoals verwacht.[/polylang]

How can I solve this?

Kind regards, Alexander