Permalinks are broken after migration

hello everyone,
I really hope to find help here because I dont know what to do.
After site migration from one domain to another, part of permalinks stopped working – they point to the Not Found Page. I could understand if they all stopped working, but only part of them – in the Events section: http://olivia.be/events/ by clicking on Read more of the Particular Event the link points to Not found page: http://olivia.be/event-view-nl/rotary-sint-truiden-organiseert-een-concert/
What happened?…
Permalinks are broken after migration

See original post by Soapmarine