A bit of a long shot.
Have you recently updated Flash Player or does it need updating? If the former, it may be worth trying an earlier version from link text if the latter an update is available from the same site.
Samsung Galaxy S8 review
1995-2015: How technology has changed the world in 20 years
This poetic animation about monsters is illustrated in a Van Gogh painterly style
How to get WWDC 2017 tickets
Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.