link featured image gets broken – again

Dear support, Still struggling whith the problem of the featured image in WordPress. With some posts it seems the link gets broken. Anyway. the image does not show. example: https://topcoaches.eu/weigering-vergoeden-afbouwmedicatie-door-verzekeraars-discutabel/ and https://topcoaches.eu/weigering-vergoeden-afbouwmedicatie-door-verzekeraars-discutabel/ This problem is a repetition of earlier tickets. hope you can help regards