Problems embedding tweets in posts

Embedding tweets in posts was working great with Benny but suddenly now they won’t embed properly and display see: https://www.lancashiresquashandracketball.co.uk/blog/2014/10/03/massaro-dashes-kippaxs-weymuller-hopes/

Frankly I don’t know what’s gone wrong, conflict with another plugin etc. If anyone has experienced similar problems and resolved them I would appreciate some advice.

Thanks
Will48