Social Networks no longer work

Hi,

Presumably, there is an issue with the addins of social networks after the recent WP updates have been introduced (I might be wrong about the updates as the cause). As a result:
– Twitter widget (Jatpack widget) is no longer working;
– I use iframe to add Facebook timeline to my page – that is no longer working;
– Regarding the Sharing Settings: the official buttons are not working and I have to use the Icon+Text option.

I run three WP blogs and am experiencing these problems on all of them.

If you visited my blog, you would see a broken link “My Tweets” on the right side instead of the fully working Twitter widget. The Facebook timeline should appear under the Twitter’s widget but it is also missing.

Any idea how to fix this?