Horde 5.2.10

https://github.com/horde/horde/commit/6ac18576cc6572d2b7c388462735e60ed333a11d

This was due to broken javascript due to changes in the Facebook API. 
Posting (among other things) is no longer possible from our code, so I 
have removed this from the block. It is also no longer possible to 
display non-public posts in the stream without a permission that 
requires facebook to add after individually reviewing the application.

removing the facebook block didn't change anything still these three 
errors are present

after removing the twitter block the last one disappeared

after removing the weather block all errors are gone

readding the facebook block brings again the first two errors

Do you have the facebook block on the portal?

Looks like the error originates there. In the meantime, try removing 
the block to see if this fixes the refreshing.

i configured on the portal page thw webmail block and the time block 
to do an auto refresh, but it never refreshes only when reloading the 
entire page

what i have seen that there is are javascript errors in the browser 
console logged when the portal page is loaded:

Uncaught TypeError: Cannot read property 'observe' of null
   Class.create.initialize @ facebookclient.js:38
   klass @ prototype.js:80
   (anonymous function) @ (index):608

Uncaught TypeError: Cannot read property 'refresh' of undefined
   HordeTopbar.onDomLoad @ topbar.js:110
   (anonymous function) @ prototype.js:7206
   fireEvent_DOM @ prototype.js:7066
   fire @ prototype.js:7055_methodized @ prototype.js:456
   fireContentLoadedEvent @ prototype.js:7241

Uncaught TypeError: Cannot read property 'tagName' of null
   Form.Element.Methods.getValue @ prototype.js:6416
   Autocompleter.Base.Class.create.baseInitialize @ autocomplete.js:31
   Ajax.Autocompleter.Class.create.initialize @ autocomplete.js:268
   klass @ prototype.js:80
   (anonymous function) @ (index):586
   (anonymous function) @ prototype.js:7206
   fireEvent_DOM @ prototype.js:7066
   fire @ prototype.js:7055
   _methodized @ prototype.js:456
   fireContentLoadedEvent @ prototype.js:7241