LWcreatives on "Polylang empty (standard) page pops up changing language"

Hi there,
My site uses theme Zeesynergie and plugin Polylang. It has a static frontpage and uses 2 languages: Netherlands (standard) and English.
Everything is working just fine except changing language from Netherlands to English. By then you see an empty standard page. If you select after that another page through the menu it is OK.
Switching from English to Netherlands goes without problem.
I use 2 menu's and 2 set's of pages. The language widget is set to 'redirect to home page' for English menu as well as Netherlands.
In my opinion the problem is that in the settings for the static page I can only redirect to the frontpage in Netherlands however the Polylang description says that it doesn't matter which page has been chosen. Hope somebody has a solution: http://www.envisafe.nl/?lang=nl
Thank you in advance.