Joomla 2.5 all links show the home page - joomla

I have joomla 2.5 it show many error.
All links even error page also showing home page.
Error message 'Unable to move file' when install extension.
Can't rewrite configuration.php

You've got server configuration/setup/permission problems, I'm surprised you didn't get any warnings when installing Joomla. I'd start by looking very carefully at http://www.joomla.org/technical-requirements.html, and seeing what is missing or is different on your server/host. Once that is done (and configuration writability will be the first clue), Joomla will be able to behave as it should. Though, you may very well have to re-install, as some steps may not have been able to complete properly due to your permissions.

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joomla 1.5 adminsitrator: article section editing doesn't load

The client have moved Joomla from old to new server. I am aware of what they did exactly. As a result joomla webpage is working (it seems so) and administrator panel loads correctly. You can edit menu items etc. there.
However, when you try to edit article it doesn't work.
When I click on article, the page start to load (...administrator/index.php?option=com_content&sectionid=-1&task=edit&cid[]=56), but the only thing that is loaded is empty page with one form element with input fields "Title", "Alias", "Section". That is it. So this means that page stoped loading.
I am not so big expert in Joomla and debugging, but can you suggest me how to fix this issue? How to find out why articles stoped working? I understand that you can me give the exact sollution, but can you mention some steps to investigate.
EDIT:
After some investigation I have set
ini_set('display_errors',1);
ini_set('display_startup_errors',1);
error_reporting(-1);
in admin.content.html.php and this showed me an error.
You can check version of php. Joomla 1.5 is pretty old so somewhere it can contain call-time pass-by-reference which was removed in 5.4+, so using it raise a fatal error. Enable error_reporting also error_reporting(E_ALL); ini_set('display_errors', 'stdout') or stderr

Empty page with logo after PrestaShop installation

My website is hosted on OVH (France), with one SQL database.
I have installed manually PrestaShop from the GitHub folder.
After multiple attempts in installing PrestaShop, I finally reached to have it installed but since I choose to use the demo products (in the installation process and as I am new to PrestaShop), I think obtaining a white page with only the logo is surprising to me (see attachment).
I tried to print the errors switching to True the dev parameters from the file defines.inc.php, but nothing was printed.
Also, I see nothing in the console of the browser.
I suspect there is a conflict with the SQL database, but I don't know what to check.
Would you have any tracks to check what's wrong with my installation ?
Regards,
A&A

Magento admin CMS pages content in wrong tab

I've got a Magento site however when I login into the admin area to create a new CMS page the content box is appearing in the Page Information tab and not the Content tab. This is causing the validation to fail when I add the content.
Any help would be much appreciated
Try disabling any third party extensions/customizations you may of installed.
It could also be caused by corrupted database entries.
Try reinstalling Magento to a new database and seeing if the issue persists.
If it's fixed, then it's a problem with your data. If it isn't, then it must be a extension or customization causing the bug.
Go to System>Configuration>Advanced and you will see a brand of extension you recently installed. Set it to disabled and hit Save Config. Flush Cache, log out and log back in to admin and it should be corrected. If it is, contact the extension creator and report the bug as it shouldnt do that.The only realy way for that to happen is for something to overrule its placement which would be a 3rd party extension.
The other possibility is that you moved some folders in adminhtml by accident. If thats the case, try uploading an original copy of adminhtml.

Joomla 2.5 save, save & close, save & new, cancel buttons do not work

When I try to create or edit an article, category, or module, I am unable to save or cancel the changes. When I click on the Admin buttons, nothing happens. The URL gets a "#" added to the end of it, and I get this error (examples from 2 different editors):
ReferenceError: WFEditor is not defined
http://www.mysite.com/administrator/index.php?option=com_content&view=article&layout=edit
Line 250
ReferenceError: tinyMCE is not defined
http://www.mysite.com/administrator/index.php?option=com_content&view=article&layout=edit&id=47
Line 247
I have Joomla 2.5.11, no other updates pending. JCE editor, TinyMCE, default, and RokPad all throw errors and don't do anything when I press the buttons. CodeMirror and None are the only editors that I can use to save the article. I have tried uninstalling JCE and reinstalling it, and no changes.
I don't remember the last time it was working, possibly January sometime, if not before then. I don't know if this has anything to do with settings in my php.ini file or not. That was the only thing that changed from the time it was working until now, but it should be back to the "default" settings.
I've tried reuploading the admin folder, but no change. I reuploaded all the Joomla files (except installation) this morning from the stable 2.5.11 package freshly downloaded from joomla.org today, and still having this problem. I've also tried purging cache from the updates manager as well as maintenance area. I've tried 2 different computers, Fire Fox, Chrome, and IE (this was the suggestion in one of the posts I found similar to this issue).
I have been searching for a resolution for months. Any topics I find that sound like my issue end up either not having a resolution, or it's something else that the person is having a problem with. I use both JCE and RokPad on dozens of other websites with no problems.
Thank you for your help.
Do you have extra plugins or modules published on all administrator pages? There could be an extra
Open your console (ctrl+shift+J) and you should be able to locate the error, once you do just try to locate the origin in your code, it's most likely not originating from Joomla core, rather from an extension / template.
Also bear in mind that plugins are active by default on both the frontend and the backend and very often they are not intended to run in the backend, nor tested in the backend.
I JUST FIXED IT!! :) : ) :)
I just switched my hosting's PHP version from 5.4 to 5.3 and voila! It functions as it should. I hope this helps someone! I'm not sure when/why I may be required to go back to 5.4 but for now this solves my problem. Any idea as to why these two versions of PHP behave so differently?

Joomla Admin panel showing error " JERROR_ALERTNOTEMPLATE You are not authorised to view this resource."

I have been using Joomla since an year ago. before few days, I made few changes to files, then the admin panel started showing error:
"JERROR_ALERTNOTEMPLATE You are not authorised to view this resource."
I am not able to figure out the solution.
First of all, let me start off with saying, that you should NOT edit core Joomla files for the following reasons:
They might get overridden during a Joomla update.
It might cause errors such as the one you currently have.
It might corrupt other functions.
It may cause security issues.
What I suggest you do is, download a fresh copy of Joomla, however only unzip the "administrator", "includes" and "libraries" folders. Then, upload these folders to the FTP so that they override the current ones.

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