Editing elements crashes after upgrade

[gulp]

Hello,
I'm using the old 2.1.9 version and works fine until now with latest 2.5.28.
After some upgrade, trying to open an element (say File or Categories) results in a unstyled blank page without buttons.
The js console say:

Code: Select all

ReferenceError: Joomla is not defined

I've tryid to reinstall the component (with upgrade option) but doesn't works.
I can't make a new clear installation because of many items already present in the system (files, categories and users combined).
How to debug or solve ?

Thank you so much for any suggestion

[Jan]

Hi, when you enable debug mode, do you get more specific error message? Did you see the errorLog on your server?

Jan

[gulp]

The Joomla debug console reports this for errors:

Code: Select all

Call stack
#	Function	Location
1	JAdministrator->dispatch()	JROOT/administrator/index.php:46
2	JError::raiseError()	JROOT/administrator/includes/application.php:164
3	JError::raise()	JROOT/libraries/joomla/error/error.php:251

Really weird to say (I've to speak two words to my provider... ) but after enabling Debug and disabling it the component now works fine !!

[Jan]

Ok