Hello everybody,

I have a website with Joomla 3.3.6 and K2 2.6.8.

I have created a K2 user group with permissions to create and edit in frontend. They can create new items and save them correctly. The problem is that when editing an article already created, pressing the save button in the popup window I get a 404 error. If I refresh the page I get a message "Frontend update not authorized" and the changes in the article hasn´t been saved. But the permissions are correct (in fact these users can create new items perfectly).

In Joomla debugger I get this message when trying to save an article in frontend:

Call stack
# Function Location
1 JApplicationCms->execute() JROOT/index.php:40
2 JApplicationSite->doExecute() JROOT/libraries/cms/application/cms.php:251
3 JApplicationSite->dispatch() JROOT/libraries/cms/application/site.php:237
4 JComponentHelper::renderComponent() JROOT/libraries/cms/application/site.php:191
5 JComponentHelper::executeComponent() JROOT/libraries/cms/component/helper.php:332
6 require_once() JROOT/libraries/cms/component/helper.php:352
7 JError::raiseError() JROOT/components/com_k2/k2.php:68
8 JError::raise() JROOT/libraries/legacy/error/error.php:253

I have several days reading forums and trying things without success. I have also asked to my template developers and they say that it is a K2 problem, and that they have nothing to do with that. :(

Can someone please help me?

Thanks in advance.

Hello Lilu,

Have you tried with the 2.7 DEV version?
getk2.org/assets/get/

Also which other extensions are you using?

Hello Krikor, thank you very much for your response.

I installed the version you sent me but unfortunately the error remains the same.

The extensions I'm using are:
Akeeba Backup
Falang
Flexicontact Plus
JCE Editor
Widgetkit
ImageShow GK4
News Show Pro GK5
Nextend Accordion Menu V9
Social GK5
Twitter API
Joomlaworks Allvideos
Pdf Embed
EU e-Privacy Directive
Xmap

Some idea?
Best regards

@Lilu

The call stack indicates that K2 throws the error at line 68 of file k2.php. In that line K2 is trying to get the controller file for the view requested. In your case it cannot find the file it is looking for. This means that either the controller file ( item.php ) is not available ( incomplete installation or invalid permissions ) or the an other extension/plugin tries to modify the default redirect location after save. Do you have an override for itemform.php file? Have you modified any of the core K2 files?

I didn´t modify any K2 core files. Which would be the solution? Overwrite some file? Thanks for yout help.

You can try the following.

a) Reinstall K2
b) Try to correct your file/folder permissions. You can use an extension like Admin Tools to do this
c) You can try disabling extensions one by one to see which extension is causing this.

Problem solved, I discovered (turning on/off every extension) it was a Falang component incompatibility, but updating the new version of Falang the bug has been fixed. :)

Thanks a lot to Krikor and Lefteris for your help!!

You 're welcome Lilu, and thank you for letting us know about the solution.

Hello, I'm new with Joomla and k2 but i already work with something like that. I got a problem with modifying items, when i click "save"; It takes several minutes and afterwards I am redirected to the homepage of Joomla and my modifications wasn't saved? I am not the creator of the site, the owner wants to customize some things and fix the bugs since the update from 1.5 to 3.7... really need help soon tanks all

Are your overrides up to date?
Furthermore, are any PHP errors recorded in your error_log?