Hi. This is the error log of the server. You can try enabling the error reporting under Joomla! configuration. However your issue is probably caused by the Suhosin extension. Try to disable it or enable the exec function that Suhosin restricts.

tnQ!!!!!!!!

its ok B) :lol: :woohoo: :kiss:
the problem cause was that Suhosin ext. :P

Oi Luciano, só vi o seu post agora, 7 meses depois, desculpe.
- Quanto a resolver os problemas com o Media Manager, tudo OK. Resolvido. Esta funcionando.
- As URLs amigaveis no Nginx nao funcionam por ferramentas CEO, tem que ser configuradas no proprio painel de controle da KH, o que eu até hoje nao consegui de tao complicado que é, até desisti.
- E quanto a melhora de performance é imperceptivel, pelo menos pra mim.

Abraço.

Deasy wrote:

laviniu wrote: enable proc is not the solution for must of us, because we are on shares host, and the provider wont enable it...another solutions?

I have the same problem, even i read your statement, i tried to chat with my serverhost. She just want to see the error inside my admin panel, created an administrator for her, and she needs like 7 minutes, then she says:..

ok, try now...

and suddenly i can open the MEDIA MANAGER successfully.

I love my web host !

Do you have any idea of what they did to resolve it? I am having the exact same issue as everyone else on here. The sites were functioning properly for over a year and then all of a sudden, i am getting these errors when attempting to upload.

I am using Godaddy VDS with Plesk on a Windows server. K2 v 2.6.1 / Joomla 1.5.26 AND Joomla! 2.5.4 Stable - I am having the problem on both versions of Joomla on 2 different websites. Both of which were working just fine with no problems.

json support enabled
json version 1.2.1

Same problem here:

joomla version 2.8

what can i do?
thx

You could ask me i got the solution, after hours of search and testing.

So, I'm asking you. Pleeeeeease!!!
Thank you ...


EDIT: proc_open() is indeed disabled in my shared hosting.

EDIT 2: My hoster was kind enough to enable proc_open() for me. The issue persists.

I have the same issue with "Invalid backend response. Data is not JSON" when trying to browse images.

Firebug gives the following message:

Warning: proc_open() has been disabled for security reasons in /sitename/administrator/components/com_k2/lib/elfinder/elFinderVolumeDriver.class.php on line 3012.

proc_open() is disabled on my server and I can't enable it. I'm on J2.5.8 and K2 v.2.6.2.

I need help to solve this issue!

Hi all,

After a long day of googling and try to turn on/off extensions one by one, I solved this problem. That is the problem of Server reporting. I will show you the steps of solution here. Hope that it could help:

- Go to System > Global configuration > Server. Turn off "Error reporting"
- Then DONE.

I'm using Joomla 3.0.1 | PHP 5.3.18 | K2 2.6.2

It may feel better not to see an error when there is one. But to me it does not really feel like a solution ...

My hosting guy fixed this by making the following changes in php.ini..

safe_mode = off
upload_tmp_dir = "/home/logik134/public_html/tmp"
date.timezone = CET
session_save_path = "/home/logik134/public_html/tmp"

Months later. I keep coming back to this thread. Today I installed the recent version of K2. This problem is still there.
Is there no K2-person who would be able to explain the issue and give a serious hint about a solution?

I need to attach files to elements, and I cannot, because of this error unless I upload each file individually.

Luciano wrote: Hello, a big THANKS to all JW crew, you guys rocks! :lol:

Yes, same issue here. :huh:

"Invalid backend response. Data is not JSON."

Fresh Joomla 1.7.2 + K2 2.5.1 setup!

KingHost Shared plan specs:

Web Server Apache/2.2.15
PHP version 5.2.17
MySQL version 5.1.56
GD image library bundled (2.0.34 compatible)
Multibyte string support Enabled
Upload limit 100M
Memory limit 128M
Open remote files (allow url fopen) Yes

Browsers:
FireFox 7.0.1
IE 8.0.6001.18702

SOLVED!!!!! - Now running Joomla - 2.5.9 and K2 - 2.6.5

Hi,

After a lonnng try/error/try/error.. I solved this issue!

Was needed 2 steps.

FIRST:
The problem of server reporting. I need to turf off this feature at my Joomala backend config. Your configuration.php must have the right chmod to change it.

- Log @ backend > Go to System > Global configuration > Server - Set "Error reporting" to "none".
- SAVE IT.

Thanks to
getk2.org/community/New-to-K2-Ask-here-first/520-Cant-Browse-Server-invalid-backend-response?limit=20&start=40#166108


SECOND:
Go to file: "elFinderVolumeDriver.class.php"

File Directory: on local host or web hosting search:

/administrator/components/com_k2/lib/elfinder

File: "elFinderVolumeDriver.class.php"

Open the file with an editor:

Go to line 752 where the line "$this->_checkArchivers();" should be! And disable this line by adding double slashes "//" (Example: //$this->_checkArchivers();)

Thanks to
getk2.org/community/New-to-K2-Ask-here-first/159715-RESOLVEDInvalid-backend-responseData-is-empty#159730